PEAR Mail unable to connect to Gmail SMTP, failed to connect to socket

Question

Facts

I am using PEAR Mail, I want to use gmail SMTP to send a mail. I have Apache/2.4.27 (Win64) PHP/7.2.0beta3, PEAR 1.10.15, Mail 1.4.1, Net_SMT

Answer 1

The "Use the Gmail SMTP Server" section of this guide says you need to enable "Less secure apps".