Wietse:
> Does the Delivered-To: header already exist in the message? If that
> is the case, you have been forwarding mail back and forth between
> Postfix and some other server. That is a mail delivery loop.
Sendu:
> Well not back and forth between my Postfix server. But in any case,
> the messages in Google's quarantine do indeed already have the
> Delivered-To header prior to delivery.
And what put that header in there? If it was added by your own
system, then you have a broken mail handling architecture.
If you are passing mail between different systems that use the same
Delivered-To: address, than that also is a broken mail handling
architecture.
Wietse
