Postfix + procmail - delivery fails because "can't create user output file" - on CentOS 6.2

Posted by jshin47 on Server Fault See other posts from Server Fault or by jshin47
Published on 2012-04-06T18:36:07Z Indexed on 2012/04/10 11:32 UTC
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Filed under:

linux

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centos

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postfix

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spamassassin

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procmail

I verified that my postfix installation / relaying setup worked. Now I am having trouble with procmail. I have it wired to postfix with the following command:

mailbox_command = /usr/bin/procmail -f -a "$USER"

I have nothing in my procmail config but the following:

LOGFILE=/var/procmailrc/log

And I send an email to a recipient that previously worked (before I attached procmail). Now it fails with error:

Apr  6 14:07:05 localhost postfix/qmgr[15194]: D0C3DFF6E1: from=<[email protected]>, size=938, nrcpt=1 (queue active)
Apr  6 14:07:05 localhost postfix/local[1953]: D0C3DFF6E1: to=<[email protected]>, orig_to=<postmaster>, relay=local, delay=0.05, delays=0.02/0.01/0/0.02, dsn=5.2.0, status=bounced (can't create user output file. Command output: procmail: Couldn't create "/var/spool/mail/nobody" procmail: Couldn't read "//root" )
Apr  6 14:07:05 localhost postfix/bounce[1955]: warning: D0C3DFF6E1: undeliverable postmaster notification discarded
Apr  6 14:07:05 localhost postfix/qmgr[15194]: D0C3DFF6E1: removed

It seems like there is some sort of permissions issue but I do not know what the problem is, nor do I understand how I would go about diagnosing it further. The logfile that I specified is empty, by the way.

How can I make procmail+postfix work?

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