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I've installed postfix and dovecot-imadp. Connecting using thunderbird works fine, but when I try to send an email I get the following error: 5.7.1 <receiver@example.com>: Relay access denied. What can I do to resolve the issue?

MeinAccount
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1 Answers1

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That'll be the mynetworks directive in the main.cf configuration file for postfix.

See this question.

Community
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Joshua Miller
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  • Thank you! If someone else has this problem: mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128, 0.0.0.0/0 – MeinAccount Oct 27 '13 at 08:12
  • Making the whole internet a trusted network will get your server blacklisted in no time. An open relay like this is likely to be used by spammers. – pupkinsen Oct 28 '13 at 11:45