[Dovecot] Dovecot LDA and "undeliverable" emails

[Bill Cole]

Kat Wisnosky wrote, On 3/16/09 1:35 PM:
> 
> I googled around looking for this, apparantly my google-fu is failing this
> morning.  I just switched over to using a Postfix/Dovecot virtual set-up
> with Dovecot as the delivery agent.  One of my users mistyped his email
> address when he paid for something through Paypal and the reciept got
> forwarded to everyone.  It didn't bounce or just go to Postmaster, it was
> delivered to every valid user on the system.
> 
> Below is my conf comments stripped:

Dovecot config is irrelevant. This is a Postfix configuration issue. You've 
provided the proof of that:


> And here's the mail.log from a test message that I sent out:
> Mar 16 09:52:46 byron postfix/smtpd[24082]: C75E84F006D:
> client=unknown[xxx.xx.xxx.xx], sasl_method=LOGIN,
> sasl_username=kat at amtpolitics.com
> Mar 16 09:52:46 byron postfix/cleanup[24085]: C75E84F006D:
> message-id=<46497375E9264D2BA3BFB31BE37918BC at Kat>
> Mar 16 09:52:46 byron postfix/qmgr[19409]: C75E84F006D:
> from=<kat at amtpolitics.com>, size=887, nrcpt=10 (queue active)

That says that the message from you had 10 recipients as Postfix was 
queueing it, *BEFORE* it tried any delivery. It is not possible for the 
Dovecot LDA to be involved in whatever caused the message to have 10 
recipients.

If you cannot figure out why that is happening from looking at your Postfix 
config, I would suggest a visit to the Postfix Users' list.