method
capable_plain_auth?
![Some documentation Importance_1](https://d2vfyqvduarcvs.cloudfront.net/images/importance_1.png?1349367920)
capable_plain_auth?()
public
true if server advertises AUTH PLAIN. You cannot get valid value before opening SMTP session.
capable_plain_auth?()
public
true if server advertises AUTH PLAIN. You cannot get valid value before opening SMTP session.