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Emails to local mailboxes SHOULD NOT go via your ISP with proper configuration BUT number of sub-optimal and botched configurations is incredible e.g. some admins want internal mails to undergo anty-virus scans provided by their ISP disregarding privacy concerns. Send email to yourself from the host and inspect Received: headers in the received message to ...


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One way you can acomplish that is with triger in my sql which will update additional field postfix_pass in owncloud user db every time new user is created or user pass changed. This is not best solution because of sha encryption of postfix users pass field. In postfix you configure auth.cfm to authenticate against owncloud user database but with pass ...


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Usually, this fixes this problem cd /etc/postfix sudo chown -R postfix . sudo chgrp -R postfix . sudo chmod -R ugo+rwx . Its important to also make the postfix directory writeable by the postfix user as it sometimes tries to create or replace files here (which it should probably keep somewhere else!)


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I had recently setup postfix to do simple email relay via gmail. I followed this guide to do it and had no problems: https://rtcamp.com/tutorials/linux/ubuntu-postfix-gmail-smtp/ I am not sure if your requirement is just as simple as mine, but you may want to give this setup a try.


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First, Sending/Receiving rely on the SMTP protocol. Dovecot, is NOT a SMTP server, it's an IMAP/POP3 server, which is used to serve Mailboxes to the end user. To receive mail you need a SMTP server, like Postfix or Exim4. To send Mail, you need a SMTP client, like sendmail. If you want to add a Web Interface, you'll also need a WebServer (Like Apache2 or ...



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