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: 607

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 - 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: 607

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

Related posts about yahoo

Yahoo Store SEO - A Must For Yahoo Stores

as seen on Ezine Articles - Search for 'Ezine Articles'
Yahoo Store SEO is an essential activity for Yahoo Store owners as it helps in better rankings and more visits to the store. This article mentions some of the important aspects of Yahoo Store SEO for Yahoo Store owners. >>> More
Incorporate Professionalism in Your Yahoo Store With Yahoo Store Enhancements

as seen on Ezine Articles - Search for 'Ezine Articles'
Yahoo Store enhancements are an essential element for Yahoo Stores if you want to take your online business to the next level. This article explains about enhancements and describes some of the Yahoo enhancements popular today. >>> More
Access Delicious API via Yahoo ID without redirect to Yahoo authorizing page

as seen on Stack Overflow - Search for 'Stack Overflow'
To be more specific: My delicious account is a Yahoo ID so access via OAuth is required. It's for my use only to add/remove bookmarks. I have the password. It's a command line python program, not web-based. My question is: Is it possible to access my delicious account without being redirected… >>> More
Removing malware of a particular kind

as seen on Super User - Search for 'Super User'
I need to remove some malware from my computer. It is a trojan, and very annoying. It blocks access to Google and search sites. The trojan, with its name spelled out on each line cause it seems to block sites when i reference it in a url, is a r t (some text to mess it up) e m (more text i s First… >>> More
How to Block a HTTP Website along with Its All Subdomain using IPTABLE

as seen on Server Fault - Search for 'Server Fault'
I run a small HTTP web proxy site . We can not modify anything there in Proxy program. Few users mainly use Yahoo Web mail for Spamming and We need to block yahoo web mail access only ( complete yahoo website is also Ok) through our proxy . specially .mail.yahoo.com.. Like - we need to… >>> More

Related posts about postfix

postfix: Temporary lookup failure

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have followed the tutorials step by step for installing and configuring postfix https://help.ubuntu.com/community/Postfix https://help.ubuntu.com/community/PostfixBasicSetupHowto I am trying to test the services to whether Temporary lookup failure error telnet localhost 25 250 2.1.0 Ok rcpt to:… >>> More
postfix with mailman

as seen on Server Fault - Search for 'Server Fault'
What should happen is that [email protected] should be delivered to that users inbox on localhost, user@localhost. Thunderbird works fine at reading user@localhost. I'm just using a small portion of postfix-dovecot with Ubuntu mailman. How can I get postfix to recognize the FQDN and deliver… >>> More
saslauthd + PostFix producing password verification and authentication errors

as seen on Server Fault - Search for 'Server Fault'
So I'm trying to setup PostFix while using SASL (Cyrus variety preferred, I was using dovecot earlier but I'm switching from dovecot to courier so I want to use cyrus instead of dovecot) but I seem to be having issues. Here are the errors I'm receiving: ==> mail.log <== Aug 10 05:11:49 crazyinsanoman… >>> More
centos postfix send email problem

as seen on Server Fault - Search for 'Server Fault'
Hello. I have a big problem with postfix. I can receive mail in webmin and outlook but I can't send (only on local I can - user to user). Dovecot is working just fine. Sendmail is disable. Please help me. postfix -n postfix: invalid option -- n postfix: fatal: usage: postfix [-c config_dir] [-Dv]… >>> More
Migrating users and mailboxes from postfix / Maildir to Postfix with Mysql backend

as seen on Server Fault - Search for 'Server Fault'
So I've got 60 or so users on a hand rolled postfix installation on openbsd and I'd like to move their mailboxes to our new mail server running iRedMail (postfix, vmail/mysql back end) Does anyone know of a good way to do this? Preferably a script I can run to keep syncing the users mailboxes as… >>> More