On Mon, Feb 25, 2013 at 11:59:40AM +0100, Dominique wrote:
> The latter one with my ISP smtp server info for for my conflictive
> domainin the following format:
>
> domain.com smtp:smtp.isp.com
Since ISP SMTP relays are generally provisioned for MSAs that don't
do MX lookups, you should probably use:
domain.com smtp:[smtp.isp.com]
likely over port 587 with TLS.
> With the valid entries in
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
> for authorization
>
> Although it seems to be working (i.e. I can send mail from both -
> checked from mail.log - both mails are being received), the outgoing
> mail through transport_maps also keeps being recycled until I
> finally receive an error message:
>
> Undelivered Mail Returned to Sender
> host smtp.isp.com said: 552 5.7.0
> Number of 'Received:' DATA headers exceeds maximum permitted (in reply to
> end of DATA command)
One of the recipients forwards the mail back to your server, which forwards
to the recipient, ... Find the loop. Look for the outgoing message-id
(not queue-id) in later incoming messages.
--
Viktor.
