Mine doesn't (Roadrunner). I run my own SMTP server off my cable modem. I have no problems getting incoming mail. Outgoing, however, was a pain because so many SMTP servers block mail coming from dynamic IPs. It annoys me to no end. I understand the reasons for doing it, but it annoys me to no end. I had to set up a small satellite server on a static IP that I route all my outgoing mail through.
To search your home, a warrant is needed. To search a remote site, less is needed, and you might never know it’s been searched, back-doored and compromised.
Mostly because the small satellite server requires very little storage, cpu, or memory. I have about 100G of mail on my IMAP server (not all in one account: I run email for everyone in my family), and that kind of space isn't cheap in the server rental business (despite the fact that a 2TB drive is $90).
Plus I just like having my data here, and not somewhere where I have no physical access.
> You'd think outbound would be where all the spam problems come from, though.
They block port 25 to prevent open relays on their network (i.e. someone sends a forged email, the SMTP server does no authentication, and just forwards it on to the destination).