Really need some ideas and help!
We are not able to send email to any Hotmail account anymore.
Anyone who knows what all Hotmail are filtering?
I set up my own test account with Hotmail, tried a regular telnet session from one of our servers.

Mail From - OK
Rcpt To - OK
Data - Mail has been queued for delivery...

And still I don't get anything to my hotmail account, not even to my junk folder. Also added our domain to the "Trusted" list on my Hotmail account.

Tried to do the same telnet session from home, and it all works fine.. !

Wonder if our College has ended up on a blacklist or something? Anyone knows where to check, if Hotmail is checking against blacklists?

Or could something completely different be going on??

Thanks in advance!!