diff --git a/modoboa/admin/lib.py b/modoboa/admin/lib.py
index 7ddff0a74..9d1b11aef 100644
--- a/modoboa/admin/lib.py
+++ b/modoboa/admin/lib.py
@@ -201,8 +201,9 @@ def get_domain_mx_list(domain):
                         omit_final_dot=True, idna_codec=IDNA_2008_UTS_46)
                     ip_answers = resolver.query(mx_domain, rtype)
                 except dns.resolver.NXDOMAIN as e:
-                    logger.error(_("No %(type)s record found for MX %(mx)s")
-                                 % {"type": rtype, "mx": domain}, exc_info=e)
+                    logger.error(
+                        _("No {type} record found for MX {mx}").format(
+                            type=rtype, mx=domain), exc_info=e)
                 else:
                     for ip_answer in ip_answers:
                         try:
@@ -211,10 +212,10 @@ def get_domain_mx_list(domain):
                         except ValueError as e:
                             logger.warning(
                                 _("Invalid IP address format for "
-                                  "%(domain)s; %(addr)s")
-                                % {"domain": mx_domain,
-                                   "addr": smart_text(ip_answer.address)},
-                                exc_info=e)
+                                  "{domain}; {addr}").format(
+                                      domain=mx_domain,
+                                      addr=smart_text(ip_answer.address)
+                                  ), exc_info=e)
                         else:
                             result.append((mx_domain, mx_ip))
     return result
diff --git a/modoboa/admin/locale/cs_CZ/LC_MESSAGES/django.po b/modoboa/admin/locale/cs_CZ/LC_MESSAGES/django.po
index 60a27f367..6141f6420 100644
--- a/modoboa/admin/locale/cs_CZ/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/cs_CZ/LC_MESSAGES/django.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2018-08-10 11:53+0000\n"
 "Last-Translator: Jarda Tesar <intossh@gmail.com>\n"
 "Language-Team: Czech (Czech Republic) (http://www.transifex.com/tonio/"
@@ -620,15 +620,16 @@ msgstr "Nenalezeny žádné funkční DNS servery"
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr "Vypršel časový limit DNS požadavku, nelze získat %s v tuto chvíli"
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No DNS records found for %s"
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Nenalezeny žádné DNS záznamy pro %s"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgid "Invalid IP address format for {domain}; {addr}"
 msgstr "Neplatný formát IP adresy pro %(domain)s; %(addr)s"
 
 #: management/commands/subcommands/_import.py:102
@@ -1270,6 +1271,11 @@ msgstr "Pro tuto doménu nebyl nalezen žádný MX záznam."
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Pro tuto doménu nebyl nalezen žádný MX záznam."
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr "Neplatný formát IP adresy pro %(domain)s; %(addr)s"
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Alias s tímto názvem již existuje"
diff --git a/modoboa/admin/locale/de/LC_MESSAGES/django.po b/modoboa/admin/locale/de/LC_MESSAGES/django.po
index e89cfb883..9b380046f 100644
--- a/modoboa/admin/locale/de/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/de/LC_MESSAGES/django.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2015-09-09 09:33+0000\n"
 "Last-Translator: controlc.de\n"
 "Language-Team: German (http://www.transifex.com/tonio/modoboa/language/de/)\n"
@@ -650,15 +650,16 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, python-format
-msgid "No %(type)s record found for MX %(mx)s"
+#: lib.py:205
+#, python-brace-format
+msgid "No {type} record found for MX {mx}"
 msgstr ""
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '%s'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Ungültiger Quota-Wert für Domain '%s'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1400,6 +1401,11 @@ msgstr ""
 msgid "No AAAA record found for MX %(domain)s"
 msgstr ""
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Ein Alias mit diesem Namen existiert bereits"
diff --git a/modoboa/admin/locale/el_GR/LC_MESSAGES/django.po b/modoboa/admin/locale/el_GR/LC_MESSAGES/django.po
index e2bb4deb4..31bfb1b59 100644
--- a/modoboa/admin/locale/el_GR/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/el_GR/LC_MESSAGES/django.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2017-10-12 08:13+0000\n"
 "Last-Translator: Kostas Moumouris <moumouriskostas@gmail.com>\n"
 "Language-Team: Greek (Greece) (http://www.transifex.com/tonio/modoboa/"
@@ -630,16 +630,17 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No MX record found for this domain."
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Δεν βρέθηκε εγράφη MX για αυτό το domain. "
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '{}'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Μη έγκυρη τιμή quota για το domain '{}'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1303,6 +1304,11 @@ msgstr "Δεν βρέθηκε εγράφη MX για αυτό το domain. "
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Δεν βρέθηκε εγράφη MX για αυτό το domain. "
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Υπάρχει είδη αυτό το ψευδώνυμο"
diff --git a/modoboa/admin/locale/en/LC_MESSAGES/django.po b/modoboa/admin/locale/en/LC_MESSAGES/django.po
index 7ead16001..dd80b8b2e 100644
--- a/modoboa/admin/locale/en/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/en/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -580,14 +580,14 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, python-format
-msgid "No %(type)s record found for MX %(mx)s"
+#: lib.py:205
+#, python-brace-format
+msgid "No {type} record found for MX {mx}"
 msgstr ""
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
+#: lib.py:214
+#, python-brace-format
+msgid "Invalid IP address format for {domain}; {addr}"
 msgstr ""
 
 #: management/commands/subcommands/_import.py:102
@@ -1206,6 +1206,11 @@ msgstr ""
 msgid "No AAAA record found for MX %(domain)s"
 msgstr ""
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr ""
diff --git a/modoboa/admin/locale/es/LC_MESSAGES/django.po b/modoboa/admin/locale/es/LC_MESSAGES/django.po
index 6e0f5faa8..8f5630a59 100644
--- a/modoboa/admin/locale/es/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/es/LC_MESSAGES/django.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2017-06-28 00:48+0000\n"
 "Last-Translator: Evilham <github@evilham.com>\n"
 "Language-Team: Spanish (http://www.transifex.com/tonio/modoboa/language/"
@@ -625,16 +625,17 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No MX record found for this domain."
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "No se encontró ningún registro MX para este dominio."
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '{}'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Cuota inválida para dominio '{}'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1298,6 +1299,11 @@ msgstr "No se encontró ningún registro MX para este dominio."
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "No se encontró ningún registro MX para este dominio."
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Ya existe un alias con este nombre"
diff --git a/modoboa/admin/locale/fr/LC_MESSAGES/django.po b/modoboa/admin/locale/fr/LC_MESSAGES/django.po
index 51b645fa9..cd15cf544 100644
--- a/modoboa/admin/locale/fr/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/fr/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2018-01-25 09:18+0100\n"
 "Last-Translator: Antoine Nguyen <tonio@ngyn.org>\n"
 "Language-Team: French (http://www.transifex.com/tonio/modoboa/language/fr/)\n"
@@ -628,15 +628,15 @@ msgstr "Aucun serveur de noms fonctionnel trouvé"
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr "Timeout de résolution DNS, impossible de requêter %s pour l'instant"
 
-#: lib.py:204
-#, python-format
-msgid "No %(type)s record found for MX %(mx)s"
-msgstr "Aucun enregistrement %(type)s trouvé pour le MX %(mx)s."
+#: lib.py:205
+#, python-brace-format
+msgid "No {type} record found for MX {mx}"
+msgstr "Aucun enregistrement {type} trouvé pour le MX {mx}."
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr "Format d'adresse IP incorrect pour %(domain)s; %(addr)s"
+#: lib.py:214
+#, python-brace-format
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Format d'adresse IP incorrect pour {domain}; {addr}"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1288,6 +1288,11 @@ msgstr "Aucun enregistrement A trouvé pour le MX %(domain)s."
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Aucun enregistrement AAAA trouvé pour le MX %(domain)s."
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr "Format d'adresse IP incorrect pour %(domain)s; %(addr)s"
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Un alias de ce nom existe déjà"
diff --git a/modoboa/admin/locale/it/LC_MESSAGES/django.po b/modoboa/admin/locale/it/LC_MESSAGES/django.po
index 5c2ee1e04..4e2f6a324 100644
--- a/modoboa/admin/locale/it/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/it/LC_MESSAGES/django.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2015-10-11 11:48+0000\n"
 "Last-Translator: Rocco <mors10@hotmail.com>\n"
 "Language-Team: Italian (http://www.transifex.com/tonio/modoboa/language/"
@@ -650,15 +650,16 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, python-format
-msgid "No %(type)s record found for MX %(mx)s"
+#: lib.py:205
+#, python-brace-format
+msgid "No {type} record found for MX {mx}"
 msgstr ""
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '%s'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Valore della quota non valido per il dominio '%s'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1402,6 +1403,11 @@ msgstr ""
 msgid "No AAAA record found for MX %(domain)s"
 msgstr ""
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Un alias con questo nome esiste già"
diff --git a/modoboa/admin/locale/ja_JP/LC_MESSAGES/django.po b/modoboa/admin/locale/ja_JP/LC_MESSAGES/django.po
index f43084602..c0bbb1280 100644
--- a/modoboa/admin/locale/ja_JP/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/ja_JP/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2016-09-14 17:06+0000\n"
 "Last-Translator: Antoine Nguyen <tonio@ngyn.org>\n"
 "Language-Team: Japanese (Japan) (http://www.transifex.com/tonio/modoboa/"
@@ -645,16 +645,17 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No information available for this domain."
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "このドメインに関する情報がありません。"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '%s'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "不正なドメイン %s のクォータ値"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1367,6 +1368,11 @@ msgstr "このドメインに関する情報がありません。"
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "このドメインに関する情報がありません。"
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "このエイリアス名がすでに存在しています"
diff --git a/modoboa/admin/locale/nl_NL/LC_MESSAGES/django.po b/modoboa/admin/locale/nl_NL/LC_MESSAGES/django.po
index 9f782ef4f..8c1ed89ab 100644
--- a/modoboa/admin/locale/nl_NL/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/nl_NL/LC_MESSAGES/django.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2014-12-31 11:37+0000\n"
 "Last-Translator: TuxBrother <vrijwilligerswerk@wij.rs>\n"
 "Language-Team: Dutch (Netherlands) (http://www.transifex.com/projects/p/"
@@ -660,16 +660,17 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No MX record found for this domain."
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Geen mx record gevonden voor dit domein"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '%s'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Verkeerde quota waarde voor domein '%s'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1425,6 +1426,11 @@ msgstr "Geen mx record gevonden voor dit domein"
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Geen mx record gevonden voor dit domein"
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Een alias met deze naam bestaat al"
diff --git a/modoboa/admin/locale/pl_PL/LC_MESSAGES/django.po b/modoboa/admin/locale/pl_PL/LC_MESSAGES/django.po
index 04398d54e..d4d4ed4c7 100644
--- a/modoboa/admin/locale/pl_PL/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/pl_PL/LC_MESSAGES/django.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2017-12-07 08:37+0000\n"
 "Last-Translator: Antoine Nguyen <tonio@ngyn.org>\n"
 "Language-Team: Polish (Poland) (http://www.transifex.com/tonio/modoboa/"
@@ -621,16 +621,17 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No MX record found for this domain."
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Nie znaleziono rekordu MX dla tej domeny"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '{}'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Niepoprawna wartość przydziału (quoty) dla domeny {}"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1290,6 +1291,11 @@ msgstr "Nie znaleziono rekordu MX dla tej domeny"
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Nie znaleziono rekordu MX dla tej domeny"
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Alias z taką nazwą już istnieje"
diff --git a/modoboa/admin/locale/pt_BR/LC_MESSAGES/django.po b/modoboa/admin/locale/pt_BR/LC_MESSAGES/django.po
index f7c474c0a..f5645b94e 100644
--- a/modoboa/admin/locale/pt_BR/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/pt_BR/LC_MESSAGES/django.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2018-09-25 03:25+0000\n"
 "Last-Translator: Rafael Barretto <ch3yd@hotmail.com>\n"
 "Language-Team: Portuguese (Brazil) (http://www.transifex.com/tonio/modoboa/"
@@ -630,16 +630,17 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No MX record found for this domain."
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Nenhum registro MX foi encontrado para este domínio."
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '{}'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Valor de cota inválida para o domínio '{}'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1287,6 +1288,11 @@ msgstr "Nenhum registro MX foi encontrado para este domínio."
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Nenhum registro MX foi encontrado para este domínio."
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Um alias para esse nome já existe"
diff --git a/modoboa/admin/locale/pt_PT/LC_MESSAGES/django.po b/modoboa/admin/locale/pt_PT/LC_MESSAGES/django.po
index df0092334..a08c3858e 100644
--- a/modoboa/admin/locale/pt_PT/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/pt_PT/LC_MESSAGES/django.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2014-12-29 12:51+0000\n"
 "Last-Translator: Mike C. <miguelmclara@gmail.com>\n"
 "Language-Team: Portuguese (Portugal) (http://www.transifex.com/projects/p/"
@@ -660,15 +660,16 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, python-format
-msgid "No %(type)s record found for MX %(mx)s"
+#: lib.py:205
+#, python-brace-format
+msgid "No {type} record found for MX {mx}"
 msgstr ""
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
-msgstr ""
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid quota value for domain '%s'"
+msgid "Invalid IP address format for {domain}; {addr}"
+msgstr "Valor de quota inválido para o dominio '%s'"
 
 #: management/commands/subcommands/_import.py:102
 msgid "CSV file is not encoded in UTF-8, attempting to guess encoding"
@@ -1370,6 +1371,11 @@ msgstr ""
 msgid "No AAAA record found for MX %(domain)s"
 msgstr ""
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Já existe um 'alias' com este nome"
diff --git a/modoboa/admin/locale/ro_RO/LC_MESSAGES/django.po b/modoboa/admin/locale/ro_RO/LC_MESSAGES/django.po
index 41fb2910f..74ae2aa9d 100644
--- a/modoboa/admin/locale/ro_RO/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/ro_RO/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2018-07-03 13:17+0000\n"
 "Last-Translator: Andrei-Ilie Olteanu <andrei@flashsoft.ro>\n"
 "Language-Team: Romanian (Romania) (http://www.transifex.com/tonio/modoboa/"
@@ -630,15 +630,16 @@ msgstr ""
 "Timeout întâmpinat la rezolvarea cererii DNS, imposibilă de interogat %s în "
 "acest moment"
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No DNS records found for %s"
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Nu s-au găsit înregistrări DNS pentru %s"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgid "Invalid IP address format for {domain}; {addr}"
 msgstr "Format invalid de IP pentru %(domain)s; %(addr)s "
 
 #: management/commands/subcommands/_import.py:102
@@ -1288,6 +1289,11 @@ msgstr "Nu există înregistrări MX pentru acest domeniu."
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Nu există înregistrări MX pentru acest domeniu."
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr "Format invalid de IP pentru %(domain)s; %(addr)s "
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Un alias cu acelasi nume deja există"
diff --git a/modoboa/admin/locale/ru/LC_MESSAGES/django.po b/modoboa/admin/locale/ru/LC_MESSAGES/django.po
index a594fc911..14008500c 100644
--- a/modoboa/admin/locale/ru/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/ru/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2013-12-03 09:35+0000\n"
 "Last-Translator: Antoine Nguyen <tonio@ngyn.org>\n"
 "Language-Team: Russian (http://www.transifex.com/projects/p/modoboa/language/"
@@ -645,14 +645,14 @@ msgstr ""
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr ""
 
-#: lib.py:204
-#, python-format
-msgid "No %(type)s record found for MX %(mx)s"
+#: lib.py:205
+#, python-brace-format
+msgid "No {type} record found for MX {mx}"
 msgstr ""
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
+#: lib.py:214
+#, python-brace-format
+msgid "Invalid IP address format for {domain}; {addr}"
 msgstr ""
 
 #: management/commands/subcommands/_import.py:102
@@ -1338,6 +1338,11 @@ msgstr ""
 msgid "No AAAA record found for MX %(domain)s"
 msgstr ""
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr ""
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Синоним с таким именем уже есть"
diff --git a/modoboa/admin/locale/sv/LC_MESSAGES/django.po b/modoboa/admin/locale/sv/LC_MESSAGES/django.po
index 63a2eabb0..33efd950c 100644
--- a/modoboa/admin/locale/sv/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/sv/LC_MESSAGES/django.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2018-08-14 08:35+0000\n"
 "Last-Translator: Olle Gustafsson <olle@dalnix.se>\n"
 "Language-Team: Swedish (http://www.transifex.com/tonio/modoboa/language/"
@@ -617,15 +617,16 @@ msgstr "Inga fungerande namnservrar hittades"
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr "DNS-upplösning timeout, kan inte fråga %s för tillfället"
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No DNS records found for %s"
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "Inga DNS-poster hittades för %s"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgid "Invalid IP address format for {domain}; {addr}"
 msgstr "Ogiltigt IP-adress format för %(domain)s; %(addr)s"
 
 #: management/commands/subcommands/_import.py:102
@@ -1268,6 +1269,11 @@ msgstr "Inget MX record funnet för denna domän."
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "Inget MX record funnet för denna domän."
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr "Ogiltigt IP-adress format för %(domain)s; %(addr)s"
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "Alias med detta namn existerar redan"
diff --git a/modoboa/admin/locale/zh_TW/LC_MESSAGES/django.po b/modoboa/admin/locale/zh_TW/LC_MESSAGES/django.po
index 590dd6f28..ff094cacc 100644
--- a/modoboa/admin/locale/zh_TW/LC_MESSAGES/django.po
+++ b/modoboa/admin/locale/zh_TW/LC_MESSAGES/django.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Modoboa\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-17 08:44+0200\n"
+"POT-Creation-Date: 2018-10-17 09:25+0200\n"
 "PO-Revision-Date: 2018-07-09 04:17+0000\n"
 "Last-Translator: akong <akong@aspa.idv.tw>\n"
 "Language-Team: Chinese (Taiwan) (http://www.transifex.com/tonio/modoboa/"
@@ -595,15 +595,16 @@ msgstr "沒有找到執行中的名稱伺服器"
 msgid "DNS resolution timeout, unable to query %s at the moment"
 msgstr "DNS 解析逾時，無法查詢 %s 在這個時間點"
 
-#: lib.py:204
-#, fuzzy, python-format
+#: lib.py:205
+#, fuzzy, python-brace-format
 #| msgid "No DNS records found for %s"
-msgid "No %(type)s record found for MX %(mx)s"
+msgid "No {type} record found for MX {mx}"
 msgstr "沒有找到 %s 的 DNS 紀錄"
 
-#: lib.py:213 tests/test_mx.py:150 tests/test_mx.py:153
-#, python-format
-msgid "Invalid IP address format for %(domain)s; %(addr)s"
+#: lib.py:214
+#, fuzzy, python-brace-format
+#| msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgid "Invalid IP address format for {domain}; {addr}"
 msgstr "無效的 IP 位址格式 %(domain)s; %(addr)s"
 
 #: management/commands/subcommands/_import.py:102
@@ -1235,6 +1236,11 @@ msgstr "沒有找到這個網域的 MX 紀錄。"
 msgid "No AAAA record found for MX %(domain)s"
 msgstr "沒有找到這個網域的 MX 紀錄。"
 
+#: tests/test_mx.py:150 tests/test_mx.py:153
+#, python-format
+msgid "Invalid IP address format for %(domain)s; %(addr)s"
+msgstr "無效的 IP 位址格式 %(domain)s; %(addr)s"
+
 #: views/alias.py:33
 msgid "Alias with this name already exists"
 msgstr "這個名稱的別名已存在"