Hosting anyone?

Dear All,

if anyone of you is working in a webhosting services provider 
that is already SPF-aware or will promptly become, please let us know.
In particular, if your solution is spamassassinated and reseller-ready.

It is highly desirable to hear about red-nail-proof web front ends that
automagically update the zonefiles with the correct entries and so on...

TIA,
Fotis

PS. Depending on how much commercial,  you are you might reply private or both 
:)