Our Corp uses Postini and I can with out a doubt it's the worst 3rd party spam filter I've ever been involved with. They lose trouble tickets and take a long time to address any issues and by the time they do all they ever say is it's not us. Many issues with Customers not able to send through them even after they've been added to the white list. Google and your companies data........ Is it really safe? ----- Original Message ----- From: Benjamin Zachary - Lists To: MS-Exchange Admin Issues Sent: Wednesday, November 05, 2008 5:32 AM Subject: postini & backscatter
I have a client whos been using postini for quite some time, about 100 mailboxes, and recently has been noticing a lot of backscatter sitting in his queues. Now, from the few times I used postini, you setup a mailbox on their system and then it redirects mail. So he shouldn't be sending out ndr's to people who don't exist because the mail should never get to his server. Im going to check the firewall, which has been set to only allow smtp/25 from the postini ip range. Im also wondering if this could be from his bes server he setup in the past couple of months, that maybe its coming from the phones? Or he has a virus internally, which I doubt, but we are doing a full scan and going through smtp logs now. ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
