fix some messages

src/locale/en-us/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-12-31 14:39+0000\n"
+"POT-Creation-Date: 2021-01-01 19:09+0000\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"
@@ -366,11 +366,11 @@ msgid "Use STARTTLS"
 msgstr ""
 
 #: paperless_mail/models.py:25
-msgid "imap server"
+msgid "IMAP server"
 msgstr ""
 
 #: paperless_mail/models.py:29
-msgid "imap port"
+msgid "IMAP port"
 msgstr ""
 
 #: paperless_mail/models.py:32
@@ -380,7 +380,7 @@ msgid ""
 msgstr ""
 
 #: paperless_mail/models.py:36
-msgid "imap security"
+msgid "IMAP security"
 msgstr ""
 
 #: paperless_mail/models.py:42
@@ -419,6 +419,10 @@ msgstr ""
 msgid "Do not assign a correspondent"
 msgstr ""
 
+#: paperless_mail/models.py:84
+msgid "Use mail address"
+msgstr ""
+
 #: paperless_mail/models.py:86
 msgid "Use name (or mail address if not available)"
 msgstr ""

src/paperless_mail/models.py

@@ -22,18 +22,18 @@ class MailAccount(models.Model):
         max_length=256, unique=True)
 
     imap_server = models.CharField(
-        _("imap server"),
+        _("IMAP server"),
         max_length=256)
 
     imap_port = models.IntegerField(
-        _("imap port"),
+        _("IMAP port"),
         blank=True,
         null=True,
         help_text=_("This is usually 143 for unencrypted and STARTTLS "
                     "connections, and 993 for SSL connections."))
 
     imap_security = models.PositiveIntegerField(
-        _("imap security"),
+        _("IMAP security"),
         choices=IMAP_SECURITY_OPTIONS,
         default=IMAP_SECURITY_SSL
     )
@@ -81,7 +81,7 @@ class MailRule(models.Model):
         (CORRESPONDENT_FROM_NOTHING,
          _("Do not assign a correspondent")),
         (CORRESPONDENT_FROM_EMAIL,
-         "Use mail address"),
+         _("Use mail address")),
         (CORRESPONDENT_FROM_NAME,
          _("Use name (or mail address if not available)")),
         (CORRESPONDENT_FROM_CUSTOM,