OT: Wiki - Postfix SMTP recipient verification

Drew Marshall drew at technologytiger.net
Mon Nov 20 16:56:41 GMT 2006


On Mon, November 20, 2006 16:33, Steve Freegard wrote:
> Hi Postfixers,
>
> I've just added a how-to to the MailScanner Wiki to do the Sendmail
> 'milter-ahead' SMTP recipient verification equivalent in native Postfix
> which is far easier than building recipient maps for mail systems that
> can reject unknown users at the SMTP stage.
>
> See
> http://wiki.mailscanner.info/doku.php?id=documentation:configuration:mta:postfix:how_to:reject_non_existent_users#using_smtp_recipient_verification
> for the info.

Thanks.

When I get a moment, I'll see if I can also enhance that with a few extra
tricks like per domain verification (i.e. If you relay for more than one
domain, enable recipient verification based on the recipient domain. Like
rulesets) and also sender verification, which works exactily the same but
the other way round (Verify the sender exists rather than the recipient).

> I'm surprised you Postfixers didn't beat me to it - so now you've got a
> Sendmailer editing your Wiki entries ;-)

Is now the time to claim that we just wanted to show the Sendmailers how
easy it was?? :-)

Drew





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