Citeren zBit <z...@centrum.cz>:
I've setup the smtp authentication in configuration files
(config/conf.php, imp/config/backends.local.php)
but when I try to send an e-mail using bad credentials, the e-mail
is sent nevertheless as the mailserver
permits relaying for the horde host.
This is something you have to configure on the SMTP server. Which one
are you using?
I assume that horde uses some kind of fallback so that whenever
the authentication fails it somehow bypasses the authentication completely.
It relies on the SMTP server to reject the message if the credentials
are not accepted. The solution is to use a separate port for mail
submission (typically, the 'submission' port (587) is used for that)
and to *require* authentication on that port, rather than making it
optional. You can't do this on the 'smtp' (25) port, since it would
effectively prevent delivery from outside.
I would like to retain smtp relaying. Is there any way to enforce the sasl
authentication?
Yes. But this needs to be configured in the mailserver, rather than in Horde.
Best regards, Arjen
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