Yahoo flagging mail as spam when using relay server

Posted by modulaaron on Stack Overflow See other posts from Stack Overflow or by modulaaron
Published on 2010-05-25T23:52:01Z Indexed on 2010/05/26 0:01 UTC
Read the original article Hit count: 605

Filed under:

yahoo

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postfix

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spam

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spf

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domainkeys

I'm using Postfix to relay mail from my site to my mail server. Mail is received properly at my Gmail and Hotmail accounts - only Yahoo is the problem. The Yahoo mail headers state:

Received-SPF: none (mta1133.mail.mud.yahoo.com: domain of [email protected] does not designate permitted sender hosts)

In contrast, the Gmail headers state:

Received-SPF: pass (google.com: domain of [email protected] designates 74.50.xxx.xxx as permitted sender) client-ip=74.50.xxx.xxx;

Reverse DNS is set up correctly, as is my SPF record.

Does anyone have any suggestions as to what I can do to solve the Yahoo problem (short of contacting Yahoo, as this is a brand new mail server)? FYI - I just set up domainkeys, but I'm not sure whether they should be on the origin or relay server.

Thanks

© Stack Overflow or respective owner

Yahoo flagging mail as spam when using relay server

Posted by modulaaron on Server Fault See other posts from Server Fault or by modulaaron
Published on 2010-05-25T23:52:01Z Indexed on 2010/05/26 1:11 UTC
Read the original article Hit count: 605

Filed under:

yahoo

|

postfix

|

spam

|

spf

|

domainkeys

I'm using Postfix to relay mail from my site to my mail server. Mail is received properly at my Gmail and Hotmail accounts - only Yahoo is the problem. The Yahoo mail headers state:

Received-SPF: none (mta1133.mail.mud.yahoo.com: domain of [email protected] does not designate permitted sender hosts)

In contrast, the Gmail headers state:

Received-SPF: pass (google.com: domain of [email protected] designates 74.50.xxx.xxx as permitted sender) client-ip=74.50.xxx.xxx;

Reverse DNS is set up correctly, as is my SPF record.

Does anyone have any suggestions as to what I can do to solve the Yahoo problem (short of contacting Yahoo, as this is a brand new mail server)? FYI - domainkeys are on the origin server and are showing as passed.

Thanks

© Server Fault or respective owner

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