I'm having a problem with mail being sent through dreamhost mail server. They immediately come back as "System Administrator" - "Undeliverable:"
I tested sending with webmail interface and could send mail to same address with no problems.
I'm using Outlook and I am able to get mail. I've also configured for port 587 and it seems as if my mail is going out, so I don't think it's the blocked port issue. I can also send mail out to myself and it comes back, again confirming the port is ok. Lastly I can send email to another mailbox within my domain.
When I look at the returned system admin message header it is blank. I can't tell who or where it is from.
Please help, this is a big problem for me right now.