Is it just us or are there general problems with sending email to yahoo in the past few weeks? Our queues to them are backed up though they drain slowly.
I have ~3,000 messages (from today) stuck with this 421-ts01 problem. Mostly it's our "campus mail bag" which is a digest that goes out to students (many of whom forward their campus mail off-site).
Interestingly, it's only on the newest of our outbound SMTP boxes that's affected. The others (which have been in use for some years) still work just fine. Our SPF record is a permissive 'ptr ~all', btw.
Cheers, Michael Holstein Cleveland State University
