Did a bit of a test with some of my email accounts last night, I set up a 'gmail' account with a smtp/server type user name
.
Then used it on two of my eclipse email accounts in 'Thunderbird' setting up a new smtp outgoing account with 'smtp.gmail.com' .
Gmail needs a STARTTLS command first (it will ask for your gmail username and password), so you have to set that as well and 'port 587'
You have to make sure you also fill in the 'Return-to Address' else the mail on return goes the gmail email account instead of my eclipse email account.
I also have to get the 'email home' function in Luckybackup working and I have the chap who developed it working on that.
Edit... I have successfully got Luckybackup to send emails to me via the Gmails smtp servers.