Delivery issues with Yahoo are not usually related to the IP address of the sending server. Yahoo employs a wide variety of anti-spam technology beyond IP-based methods. Most of the planet has problems delivering mail to Yahoo.

There is good information here:

http://help.yahoo.com/l/us/yahoo/mail/original/abuse

See the articles in the section at the bottom under "postmaster".

Also see these links:

http://help.yahoo.com/help/us/mail/defer/defer-01.html
http://add.yahoo.com/fast/help/us/mail/cgi_bulkmail

Article ID: 81, Created: March 8, 2011 at 2:07 PM, Modified: March 8, 2011 at 5:29 PM

Yahoo Email being blocked

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