Jenkins email-ext plugin not sending mail

Question

I have Jenkins version 1.480.3 installed on my machine and Email-Extention Plugin 2.30.2.

Test mail from \"Manage Jenkins\" section works fine. When I add editable email

Answer 1

This is a long shot. But chrome was auto filling my SMTP Authentication password, so when I changed any setting and clicked save, the password would also be overwritten.

Hopefully I can save someone else a headache!