Hi Franco and Swinogers Posting on SWINOG does seem to accelerate problem solving sometimes :-)
Swisscom has contacted our customer, explained and solved the issue. Apparently the installed a new anti-spam measure short time ago (I don't know if cloudmark is involved). They count the number of email to invalid recipients from an ip address. Over a certain threshold, the sending ip address is blacklisted internally. So if a business customer is sending a newsletter to it's customers and in the past did not really bother to unsubscribe bouncing recipients, he is at risk getting blacklisted @ bluewin. -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 ______________________________________________________ _______________________________________________ swinog mailing list [email protected] http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
