Comcast blocked port 25 on my account with zero warning. Now, I can't send emails from Mail from my house on my mac pro or my Macbook Pro. My office is in my home, so this is a problem obviously. They refuse to open the port back up. My webhost, IX, doesn't offer the smtp server to use any other port, so I'm pretty much screwed. I'd be willing to change hosts, but I'm limited to Comcast in my area. I know nothing about all of this really. I just want to be able to send mail from my business email, using Mail. Like I said, switching hosts is fine, I just have to find one that uses port 587 for smtp or something. Any suggestions?