Re: How to use smtpd_reject_unlisted_recipient?

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How to use smtpd_reject_unlisted_recipient?
\ Ken Morley (12 Jun 2007)
. \ mouss (12 Jun 2007)
. \ berny (12 Jun 2007)
. \ berny (12 Jun 2007)
. \ Ken Morley (13 Jun 2007)
. . \ Sandy Drobic (13 Jun 2007)

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Subject:	Re: How to use smtpd_reject_unlisted_recipient?
Group:	Postfix-users
From:	Sandy Drobic
Date:	13 Jun 2007

Ken Morley wrote:

> Ken Morley wrote:
>
> I've added reject_unlisted_recipient before postgrey as suggested above:
>
> I've tested and this does configure Postfix to consult relay_recipients
> for valid email addresses before involving Postgrey. I'm guessing that
> Postfix checks local_recipients (if defined) and then relay_recipients.
> It looks like valid recipients have to exist in one place or the other.

Postfix uses the recipient_map that belongs to the address class of the
domain. Recipients of domains in mydestination are checked against
local_recipient_maps, recipients of domains in relay_domains have to exist
in relay_recipient_maps.

If a domain is entered in more than one address class Postfix will log a
warning.

> As Berny pointed out, Postfix's smtpd_reject_unlisted_recipient
> defaults to "true". You shouldn't have to change or otherwise define
> smtpd_reject_unlisted_recipient.

Per default Postfix will check for valid recipients at the end of
smtpd_recipient_restrictions. The check "reject_unlisted_recipient" allows
you to place the check where you need it to happen.

--
Sandy

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