Has anyone successfully removed a blocked IP from Yahoo?

[SilverNodashi]

One of our Linux cPanel servers have been blacklisted by Yahoo. I followed their recommended.

 

I see a lot of these errors in /var/log/exim_mainlog:

 

 

2011-02-14 11:23:54 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host e.mx.mail.yahoo.com [67.195.168.230]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/errors/421-ts03.html

2011-02-14 11:23:54 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host b.mx.mail.yahoo.com [74.6.136.65]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/errors/421-ts03.html

2011-02-14 11:23:54 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host m.mx.mail.yahoo.com [66.94.238.147]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/errors/421-ts03.html

2011-02-14 11:23:54 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host h.mx.mail.yahoo.com [66.94.236.34]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:54 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host k.mx.mail.yahoo.com [98.139.54.60]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:54 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host i.mx.mail.yahoo.com [74.6.140.64]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host j.mx.mail.yahoo.com [66.94.237.64]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host d.mx.mail.yahoo.com [209.191.88.254]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host g.mx.mail.yahoo.com [98.137.54.238]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host l.mx.mail.yahoo.com [74.6.136.244]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host f.mx.mail.yahoo.com [98.137.54.237]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host c.mx.mail.yahoo.com [206.190.54.127]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk SMTP error from remote mail server after initial connection: host a.mx.mail.yahoo.com [67.195.168.31]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

2011-02-14 11:23:55 1Pouer-0005le-Fk == delport_michelle@yahoo.com R=dk_lookuphost T=dk_remote_smtp defer (0): SMTP error from remote mail server after initial connection: host a.mx.mail.yahoo.com [67.195.168.31]: 421 4.7.1 [TS03] All messages from 66.197.167.227 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html

 

 

 

 

So, following the suggestions here: http://help.yahoo.com/l/us/yahoo/mail/postmaster/basics/postmaster-15.html

I can safely say that, from a hosting side:

 

1. We don't use DKIM, since cPanel doesn't officially support it, but we have SPF & DomainKeys installed on all domains.
   
2. PTR records for the server is setup properly.
   
3. The mail server is secure, and not an open relay
   

 

 

Many of the other options on that list is the responsibility of our clients, and I honestly don't know how to check and see if all clients follow those practices w.r.t. mailing lists (i.e. using opt-in / opt-out, pay attention to email content, etc).

 

So, does anyone know how we can clear the Yahoo blacklist, and keep a better tab on clients? It's a shared server, so it's a bit tricky to know if / when a client sets up a mailing list, and if they do follow the correct procedures.

 

 

 

Any pointers or help with this would be appreciated.

 

I have spoked to Yahoo about this a few times but always just get their crappy canned response telling me to follow the recommended guidelines, but then nothing more from them.

[bear]

...this post looks rather familiar...

[ckh]

One thing I noted in the past, is a client will have a forwarder to another email address, whether yahoo, aol, etc. When they receive spam messages that were forwarded from your server to their offsite email address, they report it for spam and since it was forwarded by your server (even though it was at their request), the mail service will eventually blacklist the IP if reported often.