Question : MS Exchange can't send emails after ISP change

Hi,

We've just had our ISP changed over we have internet everything looks OK except our outgoing email we can receive emails but outoging are just queuing up in the exchange 2003 server.
It looks like a DNS issue.
Wondering if anyone can point me in the right direction.

I did a ns lookep with this result:

Microsoft Windows [Version 5.2.3790]
(C) Copyright 1985-2003 Microsoft Corp.

C:\Documents and Settings\Administrator>set type ns
Environment variable type not defined

C:\Documents and Settings\Administrator>set type=mx


C:\Documents and Settings\Administrator>nslookup messagelabs.com.au
Server:  cvserver.conceptav.local
Address:  192.168.1.100

DNS request timed out.
    timeout was 2 seconds.
*** Request to cvserver.conceptav.local timed-out

C:\Documents and Settings\Administrator>

Answer : MS Exchange can't send emails after ISP change

you can try either

Load an MMC console with "Certificates" snap in for the local computer & Computer Account. The go to Intermediate Certification Authorities. From there, go to the Certificates folder. Right click on the "Starfield Class 2 Certificate Authority" cert. You should see the "Disable all purposes for this certificate" selected... choose the top option "Enable all purposes for this certificate".

or

get all certificates from https://certs.godaddy.com/anonymous/repository.seam and install gd_bundle.crt,

its a known bug with IE8 agreeing with the registrars validity.