[CentOS] sendmail Deferred mail - reason unknown

Bob Hoffman bob at bobhoffman.com
Mon Dec 15 22:12:25 UTC 2008

> There are more reasons than a conspiracy to get you to pay a 
> subscription...
True, but in most or almost all, it is not your sendmail or your server that
has anything to do with it. A bounce would indicate a problem or other
things...but 'defer' could mean anything. I get a lot from yahoo, both with
the stupid ID things and one server without them. They can defer for a

I seldom get a defer from anywhere else, but a mailout of a large list could
get some.

But I see nothing you can do at your end if you are sending it other than
sending a letter to the deferring agent if you have the email, you know who
it is. If it is a big company like yahoo or hotmail, I would just send a
letter to the recipient and tell them about the issue so they can expect a

Anyone notice how little junk snail mail they are getting now? Or how many
snuggie blanket ads they are receiving via email....strange world out there.

More information about the CentOS mailing list