0.9 compatbility

[tedr56]

Hi team.
I didn't notice it wasn't working for a while.
I tried in my fork to just update the compatibility tag in package.json ftom 0.6.0 to 0.9.0 but doesn't seems to work.
I get ECONNREFUSED 127.0.0.1:25 even with the plugin rightly configured.
Thanks

[tedr56]

Actually, it is working.
I had to activate Less Secure Connection on gmail.
However, the error does not report the right ip nor port.

[yurijde]

does not work on 0.9.3
fields are empty after saving