General properties

Send mail in debug mode
SMTP server requires authentication
Use TLS to send mail
Charset used to send emails

SMTP server properties

SMTP host
SMTP username
SMTP password
SMTP port

When email is sent to system

Default subject when email sent from server
Default title when email sent from server
Default email when email sent from server

When email is sent to end-user

Default subject when email sent to client
Default title when email sent to client
Default email when email sent to client