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postfix-users: Re: SMTP commands Auth

Re: SMTP commands Auth

From: Patrick Ben Koetter <p_at_nospam>
Date: Sun Mar 18 2012 - 18:37:49 GMT
To: postfix-users@postfix.org

* Rachid Abdelkhalak <rachid@mtds.com>:
> Can i force users to SMTP-Auth when they use SMTP commands (Telnet
> 25 port of my server) to send emails from my domain?

Yes, you can. The SASL_README mentions filters around smtpd_sender_login_maps.

Also, if you can, you may simply split incoming and ougoing traffic by ports -
use 25 for incoming and 587 (submission) for outgoing (originating) traffic.
On 587 require SMTP AUTH and recject anything else.

p@rick

-- All technical questions asked privately will be automatically answered on the list and archived for public access unless privacy is explicitely required and justified. saslfinger (debugging SMTP AUTH): <http://postfix.state-of-mind.de/patrick.koetter/saslfinger/>