SMS e-mail updates suddenly not working?

My Ping.fm e-mail address is suddenly not working via SMS. Everything was posting fine yesterday right after the DNS fiasco here but now...nothing. Can still post via the site itself but prefer to post on-the-go via PDA SMS e-mail. My carrier is AT&T. They support SMS e-mail so I know it's not them. Never had a problem until now. Been posting to Ping.fm via SMS e-mail for weeks now. HELP!