I'm having a serious problem with some of our domains.
We have a Plesk box, running on Linux, with about 20 domains on it. One of them belongs to a guy who does fairly regular bulk e-mails to promote his band. They're usually sent to the 250-350 people who are on his mailing list.
Unfortunately, none of these messages are getting through to Hotmail. I've had him try sending individual messages to Hotmail users, and it's the same problem.
I'm willing to try anything, however, please keep in mind that I'm not super fluent with Linux or with e-mail stuff, so it may take me a bit of time to figure out what you're saying if you say something cryptic regarding e-mail protocols or something! lol
I've read a lot of stuff on forums recently talking about how Hotmail has changed their spam filtering, and lots of mail servers are being blocked, but no specific responses on how to fix it.
Any help is appreciated!