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.

-BenoƮt 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
______________________________________________________


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