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
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.
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
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