I’m experiencing the same problem.
Using Communicator I’m sending a test message using a gmail account. The log response is 5.5.1 Authentication Required. It’s a config problem.
Using SSL on SMTP Gmail server doesn’t work, using smtp.gmail.com on port 578 since this is de STARTTLS port. Nevertheless, 465 port doesn’t work neither (time exceded error).
Any ideas?
Thanks in advance.