We are having problems with sending emails, primarily to .yahoo emails and we also think .aol emails too.
We regularly send club membership emails to a list of 20-25 accounts. From January 5, the emails we sent were coming back 'Undelivered Mail Returned to Sender ' about 4-5 days after we sent them. The text of the messages includes the sentence 'Messages from 153.92.124.240 temporarily deferred due to unexpected volume or user complaints'. We have also sent an individual email to one of the Yahoo emails and this too was returned 4-5 days later.
Can you explain when this is happening, and how it can be fixed please.
