Difficulty sending to Yahoo??

Recently i have been hearing quite a few complaints about customer not being able to send mails to Yahoo. It either ended in the Junk/Bulk folder, it was delay for several hours before deliver or it just went to the twilight zone. Yahoo has tighten up it's measure against SPAM over the years against SMTP connections that do not conform to good mailing and Internet standard practices.And the recent trick it has against SPAM has no doubt caused an impact on innocent sender. But not to worried, there are way to increase your mail deliverability to Yahoo and I will show you the various methods you can use.

Yahoo mail itself has recommended that you do the following;

* Remove email addresses that bounce
* Examine your retry policies
* Pay attention to the responses from our SMTP servers
* Don't send unsolicited email (duh!)
* Provide a method of unsubscribing
* Ensure your mail servers are not open relays.
(Source: http://help.yahoo.com/l/us/yahoo/mail/postmaster/basics-55.html)

But there are 2 important method i believe that would also help in getting your mail through but wasn't listed above. These two methods are Sender Policy Framework (SPF) and DomainKey Signing.

Check out DKIM in my previous posting. I will elaborate on SPF in my next post.