Hello Our Email Services implement SRS to forward emails from SPF protected domains.
So the envelope server is being rewritten to the domain of the 'forwarder'. Example: [email protected] => [email protected] (forwards to [email protected]) After SRS Rewriting the sender looks something like: SRS0=[SIGNATURE][email protected] => [email protected] Unfortunately this is spam and [email protected] has choosen to have spam emails tagged in the subject and delivered. Now google seems to be computing a reputation of 'sender domains'. The result is: Our system has detected that this 550-5.7.1 message is likely suspicious due to the very low reputation of the 550-5.7.1 sending domain. To best protect our users from spam, the message has 550-5.7.1 been blocked. This starts affecting all our customers with an eblcom.ch email address. Any good ideas how to prevent that problem? We furhter encapsulate the SRS Sender to be able to detect the account that caused the bounces and disable/fix bouncing forwarders. But still this does not seem to be enough to get us a better reputation. Kind regards -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________ _______________________________________________ mailop mailing list [email protected] https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
