I still don’t have any solid information on the cause of the Yahoo bounces. I do know that folks inside Yahoo are looking into the issue.
However, multiple people (including my clients) are reporting that the addresses that are bouncing have very recent click and open activity. Other reports say these addresses deliver on a resend.
It looks like my advice yesterday was incorrect. I’m currently telling clients to continue mailing addresses for the time being.
The AOL postmaster team posted some information about the upcoming MX transition on their blog.
Read MoreAl posted about this over on his blog earlier this week. Yahoo has disabled the ability to forward email from one Yahoo account to an email account on a different system.
There is, of course, all sorts of speculation as to why forwarding has been disabled including speculation this has to do with holding on to accounts during the Verizon purchase. It’s certainly possible this is the case.
However, forwarding email is hard. Forwarding email on a large scale can result in spam blocks and delivery problems. It’s such an issue M3AAWG published a forwarding best practices document. It’s possible that Yahoo is making some changes on the back end to better implement the best practice recommendations. I don’t know, but it’s possible that Yahoo is telling the truth that they’re improving technology.
A number of people have mentioned over the last couple weeks that they’re seeing a spike in Yahoo rejecting mail with
554 delivery error: dd Requested mail action aborted
Discussions on various mailing lists indicate these messages are related to inactive accounts. Addresses that bounce at Yahoo with these codes should be handled as inactive addresses and removed from future mailings.