mail delivery delay

[juliem]

Hi!

We have Outlook 2003 and I find that I have several email
addresses that I have always regularly mail to now are
being delayed. I get this message: could not deliver the
message in the time limit specified. Then the error
code: server.xxx.local #4.4.7

I only have a problem with 2 or 3 addresses to different
places and it started on another of our computers today.

I can email to them from Yahoo.com and they can send
back. Anyone have this?

Thanks