On 12/26/2011 9:41 PM, Jason X, Maney wrote:
I have been trying to get this problem out of the way but I just cant
seem to get it right. I hope someone can point me in the right
direction here. I have come up with a vacation script as below, which
can be send out from my Postfix SMTP server to my smarthost at the
ISP, and yet for some reason it is not sent out at my ISP server. The
guys at the ISP have sent me the full error they are getting on their
Exim SMTP server. My dovecot version is:
[...]
550 Bounces must have only a single recipient
[...]
What I am not sure of is, is this a problem I need to fix or is it
something my ISP need to work on, on their Exim? If its something
they can work on can you also give me pointers so I can work with
them to fix it?
I googled for this error a bit, and it is probably produced by the
following custom anti-backscatter Exim acl (various examples float
around on the internet):
deny senders = :
condition = ${if ! eq{$recipients_count}{1}{1}}
message = Bounces must have only a single recipient
This rule only fires when the vacation message triggers multiple RCPT
commands in the SMTP session with your SMTP. Sieve only replies to a
single recipient, so apparently somewhere along the mail path additional
recipients get added and it is likely that this happens at your
smarthorst. Since this is likely an MTA problem and not a Sieve or
Dovecot issue, I cannot help you much more.
Regards,
Stephan.
