Please explain this entry in my mail.log

[RandomUsername]

Hello again,

I'm running pflogsumm every morning to provide a summary of my mail.log, mainly to see if anything is getting rejected that shouldn't be.

A couple of mornings in a row I've had this:

Code: Select all

Host/Domain Summary: Message Delivery 
 sent cnt  bytes   defers   avg dly max dly host/domain
 -------- -------  -------  ------- ------- -----------
      2    12862        0     1.6 s    2.3 s  yahoo.co.uk

and

Code: Select all

Recipients by message count
---------------------------
      2   [mywife]@yahoo.co.uk

I'm not worried that the mail is being delivered, the address is genuinely my wife's. What I can't get my head around is how/why my postfix MTA is relaying/delivering mail to a Yahoo account.

I'm pretty good with networking and servers generally, but I've no experience of mail servers beyond running my Bubba 2 as one.

Google has not helped here. Can anyone explain?

Thanks.

[Ubi]

the answer is in the maillog file of course, but my guess from the sparse information presented would be that some mail got rejected post-queue. This spam mail has a fake [email protected] sender so postfix has no option but to give it back to yahoo (i.e. backscatter). This could however also be completely bogus, but you did not give us the log excerpts so no one will know

[RandomUsername]

Hi Ubi,

Yeah sorry, I'm at work at the mo so can't access my logs. Will have a closer look when I get home.

Thanks.

[RandomUsername]

Hah, worked it out. I'm a tit. I've got some sieve rules set up to forward certain emails to the Mrs. Ignore me. Move along. Nothing to see here.

[Ubi]

so what did we learn today kids? What is that thing that we do before asking for help on forums?

[RandomUsername]

[Hangs head in shame]