Yahoo and their mail filters..

Carlos Alcantar carlos at
Wed Feb 25 02:50:20 UTC 2009

i ran into the same issue pulled my hair out for a little bit.  Make
sure you have domain keys / dkim and spf implemented on your mail
servers and domains.  Once I did that all was smooth sailing.

Carlos Alcantar
Race Technologies, Inc.
101 Haskins Way
South San Francisco, CA 94080
P: 650.246.8900
F: 650.246.8901
E: carlos ['at']

-----Original Message-----
From: Joe Abley [mailto:jabley at] 
Sent: Tuesday, February 24, 2009 6:41 PM
To: Micheal Patterson
Cc: nanog at
Subject: Re: Yahoo and their mail filters..

On 24 Feb 2009, at 21:27, Micheal Patterson wrote:

> This may be old news, but I've not been in the list for quite some  
> time. At any rate, is anyone else having issues with Yahoo  
> blocking / deferring legitimate emails?

Yes. Everybody else.


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