It's a far more serious problem than he is letting on here:
http://www.thetechherald.com/article...-was-NOT-Pwned

I have several customers that are having serious mail problems because ATT is, I believe, being attacked. A tech at ATT said he can have me change my customers DNS info but that'll only last so long as the extra load on those servers will cause a DOS also. So...

Hmmm.

Gotta love service providers.