Fixes #676 - Added another error message for M365 (authentication uns…

…uccessful)

channels/microsoft365/common-errors.rst

@@ -169,3 +169,20 @@ To avoid this, you should change the
 `Safe Attachments unknown malware response <https://learn.microsoft.com/en-us/defender-office-365/safe-attachments-about?view=o365-worldwide#safe-attachments-policy-settings>`_
 from "Dynamic Delivery" to something else fitting your needs (e.g. "Block") for
 your Office 365 instance.
+
+
+Authentication Unsuccessful
+---------------------------
+
+**Error message:** 535 5.7.3 Authentication unsuccessful
+
+.. note:: This error message can have different reasons. See description below
+  for one of them.
+
+Microsoft allows sign-in and authentication using the primary email address.
+While this works for fetching emails, SMTP authentication may not work in this
+case.
+
+Try to delete the MS account and recreate it using your username.
+In Zammad, manually change the email address to the username. Then you should
+be able to send and receive emails again.

locale/admin-docs.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Zammad Admin Documentation pre-release\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-10-10 11:53+0200\n"
+"POT-Creation-Date: 2024-10-22 11:54+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <[email protected]>\n"
@@ -4099,6 +4099,26 @@ msgstr ""
 msgid "To avoid this, you should change the `Safe Attachments unknown malware response <https://learn.microsoft.com/en-us/defender-office-365/safe-attachments-about?view=o365-worldwide#safe-attachments-policy-settings>`_ from \"Dynamic Delivery\" to something else fitting your needs (e.g. \"Block\") for your Office 365 instance."
 msgstr ""
 
+#: ../channels/microsoft365/common-errors.rst:175
+msgid "Authentication Unsuccessful"
+msgstr ""
+
+#: ../channels/microsoft365/common-errors.rst:177
+msgid "**Error message:** 535 5.7.3 Authentication unsuccessful"
+msgstr ""
+
+#: ../channels/microsoft365/common-errors.rst:179
+msgid "This error message can have different reasons. See description below for one of them."
+msgstr ""
+
+#: ../channels/microsoft365/common-errors.rst:182
+msgid "Microsoft allows sign-in and authentication using the primary email address. While this works for fetching emails, SMTP authentication may not work in this case."
+msgstr ""
+
+#: ../channels/microsoft365/common-errors.rst:186
+msgid "Try to delete the MS account and recreate it using your username. In Zammad, manually change the email address to the username. Then you should be able to send and receive emails again."
+msgstr ""
+
 #: ../channels/microsoft365/email-headers.rst:3
 msgid "Header based actions in Microsoft 365 channels work in the same way as in email channels. This is why the section has been adopted verbatim from :doc:`here </channels/email/email-headers>`."
 msgstr ""