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Re: smtpd_sender_login_maps LDAP lookup for non-authenticating senders
From: Tony Earnshaw (tonye
billy.demon.nl)
Date: Mon Mar 01 2004 - 19:05:26 CST
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tir, 02.03.2004 kl. 00.44 skrev Chris Paul:
> Hello Postfix Users,
>
> I'm running Postfix 2.0.16-20031231.
Me 2.0.18-20040205.
> I just added an LDAP smtpd_sender_login_maps (using OpenLDAP 2.1.25).
> All seems to be working well.
>
> I just didn't expect Postfix to do an LDAP lookup on users for
> non-SASL-ly authenticated mail, which it is doing:
I can confirm this with my Postfix version. I have more or less the same
kind of setup and also use smtpd_sender_login_maps for LDAP.
The only thing I can add is, that only one BIND is done for each LDAP
conn (one conn can service several recipients for each HELO) and there
are no UNBINDs until the client MTA disconnects and the conn is closed.
It's not taking up many resources; moreover I'm using ldapi through a
Unix domain socket for all Postfix LDAP stuff, which cuts down overhead
in itself.
It is strange, though.
--Tonni
--
mail: billy - at - billy.demon.nl
http://www.billy.demon.nl
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