I am running exchange 2007 with VirusScan 8.7 and GroupShield. When i deploy the EOP 4.5 agent on the Exchange server Outlook cannot update the mailboxes with new mail.It will show that the mailbox is connected but Trying to update which never goes through. When I uninstall the agent or disable EPO communication all is well again.
I have disabled the port 25 blocking on the mail server, under Access Protection.
Any ideas on what the cause could be will be appreciated?
Had to create a new McaFee agent policy in which I disabled the option "Accept connections only from the EPO server". Reinstalled the agent applying this agent policy and all is well and happy thus far.