Hi List

We increasingly notice, that when an account got phished, it is being
abused to send spam from usually one or two Amazon AWS US IP Addresses
simultaneously, staying below our account auto-block thereshold.

Quite some time in the past, when I first observed this, contacted the
Amazon Abuse Desk, including the infos they provide in their WHOIS
entry in the past, but newer ever got any kind of reaction.

Now I am curious, do others also make this observation?

How about blocking the Amazon AWS IP ranges? Are there any legitimate
emails being send by them?

Well I could try to block them only for Authenticated SMTP submission,
not for MX operation.

Mit freundlichen Grüssen

-Benoît Panizzon-
-- 
I m p r o W a r e   A G    -    Leiter Commerce Kunden
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Zurlindenstrasse 29             Tel  +41 61 826 93 00
CH-4133 Pratteln                Fax  +41 61 826 93 01
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