chaining aliases failing?

9 msg	Maximum length of a header line?
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1 msg	Postfix snapshot 20070724
8 msg	relay access denied
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13 msg	Message size limit per user

chaining aliases failing?
\ anoonan (24 Jul 2007)
. \ Magnus Bäck (24 Jul 2007)
. \ Andrew Noonan (24 Jul 2007)
. . \ mouss (24 Jul 2007)

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3 msg	SASL and NIS errors
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Subject:	chaining aliases failing?
Group:	Postfix-users
From:	anoonan
Date:	24 Jul 2007

Hi all,

I'm fairly new to the world of postfix and I'm trying to set up a replacement for a sendmail environment and I'm seeing some strange things.Ā My aliases file contains an alias from postmaster to root, and root to an external address (say sysadmin).Ā If I send mail to root@localhost, it rewrites it to root, and then rewrites it to sysadmin and sends it, but if I send to postmaster@localhost, it rewrites it to root and immediately attempts to send (where it is bounced).Ā If I send to postmaster, it also rewrites it to root and attempts to send.Ā It's as if there is only allowed to be a single alias lookup before the message is reevaluated.Ā In our sendmail setups, this lookup seems to reach its final designation.Ā I've looked in the documentation and I haven't found anything that gets around this, but I've very inexperienced in Postfix.

Thanks,
Andrew