[IMail Forum] Help! SMTP Error

[Banet LLC]

I have just recently loaded Imail v6.05a. Most of our users are using the Web based mail. But we have some Outlook Express users that are unable to send mail and are getting the following error message.   The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was '[EMAIL PROTECTED]: subject 'Trials: Account: 'info; server: 'mail.vitaproducts.com'; Protocol; SMPT, Server Response: '550 not local host wsu.edu, not a gateway; Port: 25, secure (SSL); No; Server error: 550, error number: Ox800CCC79"   Please help if anyone knows a solution to this problem.   Howard