Data Format Error

Andrew Brink abrink at
Fri Mar 25 13:11:21 EST 2005

I don't think that is the problem, we have an alias that sends postmaster related email to /dev/null
and I can that it is working.


-----Original Message-----
From: owner-info-cyrus at
[mailto:owner-info-cyrus at]On Behalf Of Alexander
Sent: Friday, March 25, 2005 10:57 AM
To: info-cyrus at
Subject: Re: Data Format Error

Am Fr, den 25.03.2005 schrieb Andrew Brink um 16:36:

> I am getting a bunch of these "Data Format Errors" in my sendmail log files.  These are happening mostly when
> spam gets sent to a user that does not actually have a mailbox.  Below is an example of one message:
> sendmail[1007]: j2PFXQgM001005: to=<aa36987 at>, delay=00:00:00, xdelay=00:00:00, mailer=cyrus,
> pri=512884, dsn=5.6.0, stat=Data format error
> Any ideas of why I get this instead of just a stat=User Unknown?

> Andrew Brink, CCNA, WCSP

Your system isn't able to deliver the mail to the postmaster account.
You should consider using a catch-all entry (i.e. in the virtusertable)
to reject mail to non existing accounts and not accepting them and then
getting them to your postmaster.


Alexander Dalloz | Enger, Germany | GPG 0xB366A773
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Fedora Core 2 GNU/Linux on Athlon with kernel 2.6.10-1.770_FC2smp 
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