1
vote
1answer
611 views

Can't receive password-protected archives in Exchange 2007

First off, the relevant environmental information: I'm running Exchange 2007 behind a Barracuda Spam & Virus Firewall 300. Recently, I've started using a service that sends me a monthly report. ...
1
vote
2answers
4k views

Exchange 2007 Email Error 451 4.7.0 Timeout waiting for client input

Our SBS 2008 server with Exchange 2007 started rejecting some (most) emails starting about 3 or 4 days ago. The return failure message looks something like this: The error that the other server ...
0
votes
1answer
1k views

Exchange 2007: E-Mails not showing up, but have been delivered by E-Mail Security (SonicWall)

I've a very strange problem: SOME mails (I can't see a pattern) are not shown in our Outlook Exchange Accounts, but when I check the E-Mail Security Logs (we use a SonicWall), they seem to be ...
0
votes
3answers
5k views

Reverse DNS does not match SMTP Banner

I had this Warning with mxtoolbox. I know that it's not necessarily a big problem, but since we are having lots of issue with email delivery, I want to check everything. I have a Exchange server 07 + ...