Issue Summary

The documentation page Configuring JIRA's SMTP mail server to send notifications states near the beginning: 

Note: For all of the following procedures, you must be logged in as a user with the JIRA Administrators global permission.

Which can cause confusion due to the fact that the Global permission Jira Administrators allows users to turn the Outgoing Mail ON and OFF but the global permission Jira System Administrators (which is a different permission than Jira Administrators) is required to be able to actually add, remove and modify the Outgoing Mail settings.

This confusion is exacerbated by the way the Global permission for Jira Administrators is described in Jira:

Steps to Reproduce

1. Create a user in Jira
2. Add the user to a group that is included in the Global Permission Jira Administrators but not in the Jira System Administrators
3. Log in Jira with the newly created user and go to Jira Administration > System > Outgoing Mail

Expected Behavior

• The functionality is shown, allowing the user to turn the Outgoing Mail ON or OFF, as well as being able to add, remove or edit the SMTP configuration.

Actual Behavior

• The functionality is shown, only allowing the user to turn the Outgoing Mail ON or OFF.

Workaround

• Give the Jira System Administrators global permission to the user.

Notes

• The behavior is consistent across versions from 7.1 to 7.8 and it makes sense that doing a global change like the SMTP server should be done by a Jira System Admin, perhaps clarifying what each of the permissions allows would be enough.