If you use Postini, what are your thoughts? Spam/virus blocking rate? False positives rate?
If you use a different service, I'd like to hear about whatever you use, as well as if you compared services against each other in a live test.
Not looking for do-it-yourself stuff here. We already have a solution for that. This is for a comparison between the Trend Micro solution and off-site managed solutions. Yes I know Trend uses Postini's engine.
Also, does anyone know if Exchange can be hardened against Directory Harvest Attacks? I know most *nix mail servers can, don't know about Exchange though. That seems to be the way we're going to go. I've found some docs on Microsoft's KB that suggest it can. Any Exchange gurus out there that know for sure?
If you use a different service, I'd like to hear about whatever you use, as well as if you compared services against each other in a live test.
Not looking for do-it-yourself stuff here. We already have a solution for that. This is for a comparison between the Trend Micro solution and off-site managed solutions. Yes I know Trend uses Postini's engine.
Also, does anyone know if Exchange can be hardened against Directory Harvest Attacks? I know most *nix mail servers can, don't know about Exchange though. That seems to be the way we're going to go. I've found some docs on Microsoft's KB that suggest it can. Any Exchange gurus out there that know for sure?
