“Name” - required field, name of the SMTP server;
“From address” - required field, the default address this server will use to send emails from;
“Email prefix” - required field, this prefix will be prepended to all outgoing email subjects;
“Service Provider” - the field is displayed only on the server creation page. You can choose custom or default Gmail and Yahoo SMTP server providers;
“Protocol” - SMTP or secure SMTP protocol;
“Host Name” - required field, the SMTP hostname of your mail server;
“SMTP Port” - SMTP port number to use. Leave blank for default (defaults: SMTP - 25, SMTPS - 465);
“Timeout” - timeout in milliseconds: 0 or negative values indicate infinite timeout. Leave blank for the default (10000 ms);
“TLS” - the mail server requires the use of TLS security;
“Username” - optionally, if you use authenticated SMTP to send an email, enter your username;
“Password” - Optionally, enter your password if you use authenticated SMTP
12.“Test Connection” - allows you to check the connection to the SMTP server. In case of an unsuccessful connection, a message appears with a description of the error;
13. “Save” - custom mail server saving;
14.“Cancel” - allows you to return to the “Custom SMTP server” page without saving data.