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How to prevent mail delivery for disabled user
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1
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410
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September 12, 2023
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HowTo implement "soft" quota for Dovecot
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1
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186
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July 1, 2023
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Univention Postfix (Sender address rejected: not owned by user)
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3
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178
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February 2, 2023
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How-to: Reject all outgoing mail except one domain
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3
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191
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November 28, 2022
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Anmeldung mit Mailclient (e.g. Outlook, Thunderbird) nicht möglich
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2
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516
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May 13, 2022
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Problem: Postfix not starting after upgrade from UCS4 to UCS 5
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1
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488
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March 16, 2022
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HowTo: adjust the time until warnings or errors for temporarily undeliverable messages are sent
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3
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784
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February 18, 2022
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HowTo: Rate Limiting in Postfix
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1
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1326
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January 28, 2022
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Q&A: Is there a way to use a UCR attribute to limit the number of emails a user can send?
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1
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217
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January 4, 2022
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Spamassassin not changing header
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0
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193
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October 26, 2021
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Spamassassin Configuration after Mailserver (or groupware) installation with Postfix
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0
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413
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October 17, 2021
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UCS + Kopano + t-online.de => searching best practise
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0
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306
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October 4, 2021
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How to use --> UCS Variable (mailForwardCopyToSelf)
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0
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284
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May 16, 2021
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Sending mail on behalf other domain
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2
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382
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March 25, 2021
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[Problem] Sending Mails to groups with other nested groups does not work
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1
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737
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March 22, 2021
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No undelivered mail return to sender
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3
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275
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February 20, 2021
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Problem: Emails to a new email domain are always sent to the postmaster
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1
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327
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January 31, 2021
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Migration of LDAP attribute mailForwardCopyToSelf
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1
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580
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January 11, 2021
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Konfiguration: Systembenachrichtigungen per E-Mail
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2
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455
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November 19, 2020
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Sender dependent relayhostmap korrekt nachbessern
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0
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298
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November 16, 2020
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Dovecot sieve vacation: Client host rejected: Access denied (in reply to RCPT TO command))
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0
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753
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October 25, 2020
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Howto: Set Sender's Email Adress for Self-Service
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0
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691
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December 30, 2019
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Mail to external users and same mail domain
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3
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1087
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August 6, 2020
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Bestimmte User sollen nur interne Mails senden dürfen
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4
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740
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July 28, 2020
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Problem: Postfix Error 4.4.1 - message deferred
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0
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4188
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June 24, 2019
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Problem: Postfix tries to use TLS when sending and fails
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0
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3742
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June 26, 2020
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Problems with Kopano/Postfix/Spam/Antivir
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6
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1092
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June 19, 2020
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Mail relay geht nicht
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1
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816
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May 4, 2020
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Q&A: Can I use another sender address for systemmails?
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0
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622
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April 9, 2020
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Problem: /etc/postfix/tls_policy Database Is Not Written Automatically
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1
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477
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March 18, 2020
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