Do they have SMTP logging turned on? What do their logs indicate? ________________________________
From: Steve Hart [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 15, 2008 12:23 PM To: MS-Exchange Admin Issues Subject: Single customer issue I have a customer that's complaining of erratic performance delivering email to us. Sometimes it comes through; other times, it doesn't. I'm admittedly over my head, but I suspect a spam related blocking due to a PTR record mismatch. They are sending mail from three domains, nbf-trio.com, trioads.com and trionw.com. They all share the same email server at 64.62.8.154. The PTR record reads mail.nbf-trio.com. The server's same in an SMTP session is trionw.com. We're running Exchange 2007 SP1. Exchange anti-spam is enabled, but all three of their domains are on our allow list. We're also running Forefront, but all blocked emails are quarantined and we're getting nothing there. I obviously have little contraol over a customer's email system. How can I ensure that we recieve their emails? Thanks in advance, Steve ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
