I have tried 2 gmail accounts and an ATT Yahoo account (bellsouth.net) as well as my bellsouth.net pop3 account.
For all I get the same error: service.FAILURE: system failure: SMTP connect failure
My settings for my bellsouth account in Zimbra are the same as Outlook 2007 and my gmail account should be a no-brainer since all I need is my user name and password.
I use Mcafee as my firewall. It is set to allow Zimbra and I have also tried to connect with the fire wall off with no success. Any help will be appreciated.