I'm working with a client who has the S&V Blocker appliance. An email came in from a person 'firstname.lastname@example.org' and it passed all the rules (as was expected) and the logs showed: 'Message 1825179 to email@example.com received remote SMTP response '2.6.0 <23598349.3168.1299683090958.JavaMail.firstname.lastname@example.org> Queued mail for delivery'.
But the email never made it in. The same person sent one about an hour after this one from a different domain name and that one made it through. I'm trying to find out why/how/where that message never came through or where it's setting. The Exchange server shows the second email coming in but not the first.