I did installed MTA in the edge box and did the following:
zmprov ma
test@account.com zimbraMailTransport smtp:mail.account.com
The problem is, the Edge MTA seems to skip scanning
test@account.com. mail.account.com scan the email for spam and virus though. I would like the Edge MTA to do the scanning as well to be useful. Is there anyway I can achieve this using Zimbra ?