I am not an outlook expert but I ran into to this 300 limit at work where
someone said they sent a note out to a large list and others did not receive.
These were all internal addresses. If you are working in a large
corporation I think this has to do with persission to send large emails. I
would contact your exchange admin before you call the isp. Hope this helps.

Ed

"Geronimo" wrote:

That was what he thought. Thanks for clearing that up!
Geronimo

"Brian Tillman [MVP - Outlook]" wrote:

"Geronimo" wrote in message
...

I am trying to help someone email potential clients, and although he has
over
1000 addresses to mail to, he said he only seems to be able to send to
about
300 at one time. He is using Outlook 2003. Appreciate any ideas.

Not an Outlook problem. His ISP is limiting the number of recipients.
--
Brian Tillman [MVP-Outlook]