[horde] Mailer SMTP option not working

[Jeff Tipton]

I just tried to capture packets on the server's network interface with 
tshark to see what's going on.

When trying to send from IMP, there was absolute silence, only the IMP's 
error message "Error when communicating with the server." But when I 
logged in from the command line, telnet session to the smtp server got 
recorded. So my Horde doesn't actually try to connect to the smtp server.