Problems sending mail to yahoo?

Michael Holstein michael.holstein at
Thu Apr 10 18:09:31 UTC 2008

> 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.


Michael Holstein
Cleveland State University

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