cannot send email to certain accounts within my organization

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outlook 2003 - I cannot send email to a couple of accounts within my
organization. Others outside cannot send either, but majority of users can
send emails to the accounts. If I reply to an email sent from the account,
the message goes through. The error I receive is "The e-mail account does
not exist at the organization this message was sent to. <#5.1.1>

 

[Milly Staples [MVP - Outlook]]

http://support.microsoft.com/kb/284204

--
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, maryjane wrote:

| outlook 2003 - I cannot send email to a couple of accounts within my
| organization. Others outside cannot send either, but majority of
| users can send emails to the accounts. If I reply to an email sent
| from the account, the message goes through. The error I receive is
| "The e-mail account does not exist at the organization this message
| was sent to. <#5.1.1>