Who sent you back the notification? If your ISP did, then you certainly do have a limitation on the number of recepients.

--�
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact. All
unsolicited mail sent to my personal account will be deleted without
reading.

After furious head scratching, Chris Burke asked:

| I am sending a email using a distribution list of 100 plus recipients.
|
| I get a return email saying the following recipients could not be
| reached, 452 Too many Recipients
|
| My server has no limitations on sending email, is there a limitation
| on this software?
|
| I would be gratful if anyone could help.
|
| Many Thanks