On Sat, Feb 13, 2010 at 07:28:35PM +0000, Frog wrote:
> Every now and then in the logs I see a message such as this:
>
> Feb 13 14:37:37 lnxsrv01 postfix/local[19279]: 6A861302508:
> to=<:blackhole:@lxxxxx.xxxxx.com>, orig_to=<tanzeel...@xxxxx.com>,
> relay=local, delay=0.49, delays=0.23/0.18/0/0.08, dsn=5.1.1,
> status=bounced (unknown user: ":blackhole:")
>
> In this case it is spam that has been rejected
No, it's backscatter. You accepted it, then sent a bounce.
> but in almost 8 years of using Postfix I have never seen this
> before.
>
> Here is the output from postconf -n
You have munged domain names, looking inconsistent at that, so if
your question pertains to mail routing, it is not possible to help
you.
I can guess what might have happened. You got spam for this
orig_to=<tanzeel...@xxxxx.com>, and it was rewritten (perhaps by
alias_maps; perhaps by virtual_alias_maps) to this other
to=<:blackhole:@lxxxxx.xxxxx.com> address. That munged domain is in
mydestination (although your munging did not show that), and there's
no local user nor alias called ":blackhole:".
Why this ":blackhole:" result? You'd have to tell us.
> alias_maps = hash:/etc/aliases
> mydestination = xxxxxxx.xxxxxxxxxx.com, localhost.xxxxxxxxxx.com, ,
> localhost
> myhostname = xxxxxx.xxxxxxxxxx.com
> myorigin = /etc/mailname
> sender_bcc_maps = hash:/etc/postfix/bcc
> virtual_alias_maps = hash:/etc/postfix/virtual
> Any assistance greatfuly appreciated
The problem description was inadequate, but I left in the possibly
relevant postconf lines.
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