barthat on "[Plugin: WP Mail SMTP] Authentication on Google Apps / Gmail"

SMTP -> FROM SERVER: 250-mx.google.com at your service, [xxx.yyy.zzz.n]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN
250-ENHANCEDSTATUSCODES
250 CHUNKING

How does this plug-in send email via Google Apps?

I believe in order to do that the plugin needs to support OAuth2.0
https://developers.google.com/accounts/docs/OAuth2WebServer

http://wordpress.org/plugins/wp-mail-smtp/