We use McAfee OAS on our corporate machines.
Using Outlook, I am able to set up my gmail account that uses SMPT Port 587 to send out messages.
However, a custom application that has been written in VB.Net uses the same port and it's getting blocked by McAfee.
How come Outlook is able to send out these messages and not this application? How should the application be coded to enable sending email messaes?
What McAfee product(s) are you using please - names and versions ?