The other possibility is that you somehow got blacklisted with a service like SpamCop. If that is the case, you got a bigger problem than simply Yahoo or AOL.
The problem with these systems is that due to the high volume of spam they receive, they usually don't check everything (like forged headers) and can block large IP Blocks... Which sometimes includes your own IP. I would check with blacklists lookup services to make sure your IP is not on thoses... Something like http://www.mxtoolbox.com/blacklists.aspx (try for example, 67.195.9.109 which is a Yahoo IP. It's blocked by at least one list: http://www.mxtoolbox.com/SuperTool.aspx?action=blacklist%3a67.195.9.109 ) The "joys" of the internet E-mail protocols :) David Montminy [email protected] wrote: > I'm having an issue with Yahoo and their servers rejecting mails from > our network: > > "If you are persistently seeing the message "421 4.7.1 [TS03] All > messages from x.x.x.x permanently deferred" in your SMTP logs, this > indicates that we are seeing a high volume of emails from your server > that is indicative of unsolicited mailings. To review our recommended > practices for bulk senders, we strongly encourage you to visit:" > > After contacting Yahoo, our own provider and even changing the range of > IPs we were using on one server, the problem persists. > > I'm not sure exactly what is happening but from what I understand, > Yahoo is blocking emails from many mail servers(Confirmed with our own > uplink provider) without actual proof that the remote server is > actually sending bulk messages. > > Some users said there is now a form to use so that Yahoo will allow you > to send emails to their users. > > Has anyone else encountered this problem lately? I've check 3 of our > mail servers, they do no SPAM. Some of those mail server send on > average 60 emails per day and that's across many different servers. > > Yahoo are being totally useless. All we are getting are automated > replies without useful information. Some of it are FAQ about > rDNS, SPF and domain keys and I'm wondering if this is a move > by Yahoo to force smaller providers to integrate domainkeys in their > system. (rDNS and SPF is configured) > > I'm using Exim and Postfix, depending on the servers. > > Ideas? Did I miss the boat at some point and everyone are supposed to > be using DomainKeys? > _______________________________________________ mlug mailing list [email protected] https://listes.koumbit.net/cgi-bin/mailman/listinfo/mlug-listserv.mlug.ca
