The SMTP settings page controls the SMTP connection used for email notification. You may only require the server and From fields, depending on the system that you are connecting to.
The SMTP server name
The name to be used as the from address. This may need to match the username for the account
The username used if authentication is necessary.
The password used if authentication is necessary.
Allows the message Id to be specified in notifications.
Allows the system to handle special charsets. If you are having character problems in your notifications, you can use this setting to try and solve charset issues. In many cases, "iso-8859-1. will solve the problem.
This option strips email notifications of the issue details. Just a title with the unique issue ID is sent.
This option strips email notifications of the quick links to the system, from the top of the notification..