Undeliverable E-mail notifications with error Codes
Posted on 2006-06-21
We recently setup an Exchange Server in our small office, changed the MX records to point to the server, and everything works great. However, there are a few instances where e-mail is returned to one of our employees with the following error:
There was a SMTP communications error with the recipient's e-mail server. Please contact your system administrator.
<server.hollandercompany.com #5.5.0 smtp; 554 no relaying allowed - psmtp>
I would sincerely appreciate any suggestions to resolve this issue.