Yahoo and their mail filters..

Carlos Alcantar carlos at
Wed Feb 25 21:38:37 UTC 2009

We ran into this issue where we where tagging emails with ***SPAM*** and
forwarding them on which got us blocked everyone once in a while pretty


-----Original Message-----
From: Chuck Schick [mailto:chasjs at] 
Sent: Wednesday, February 25, 2009 10:18 AM
To: nanog at
Subject: RE: Yahoo and their mail filters..

We found this issue to be associated usually with users forwarding email
a Yahoo account.  If spam slips by our spam filters and gets forwarded
the enduser reports it as spam not realizing the impact on their

In the last couple of years we have been not allowing people to forward
their accounts to yahoo, aol, hotmail, etc.  Too much of a headache.


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