Answer

Incoming Mail (POP3) Server - requires SSL:pop.gmail.com

Use SSL: Yes
Port: 995

Outgoing Mail (SMTP) Server - requires TLS3 or SSL:smtp.gmail.com (use authentication)

Use Authentication: Yes
Port for TLS/STARTTLS: 587
Port for SSL: 465

Account Name:your full email address (including @gmail.com or @your_domain.com)

Email Address:your email address (username@gmail.com or username@your_domain.com)

Password:your Gmail password