kb51: How does Longitude SMTP server work?

Heroix Longitude can send e-mail through two mechanisms: an internal SMTP engine and through a user-configured, external SMTP server. This dual approach was taken to accommodate users, minimizing initial configuration but allowing flexibility.

Heroix Longitude uses SMTP to mail:

- Administrative notices from the Web UI (e.g. new user notifications, password change notifications)
- Reports
- Alert Notifications from Longitude rules (use the Manage Action Rules function to enable mail notification for individual rules).

By default, Heroix Longitude uses an internal SMTP engine, called Aspirin, to send e-mail because the internal SMTP engine does not require any configuration from the user. This internal SMTP engine is like a mini send-only SMTP server running inside Heroix Longitude. Since it is not registered as a real SMTP server, some spam filters may interpret the e-mail it sends as spam. This may be the problem if you do not receive any e-mail from Heroix Longitude.

The Limitations section on the Aspirin website (https://aspirin.dev.java.net/) notes a potential problem sending mail to a server using Sender Policy Framework mail authorization, along with a link to the SPF website (http://www.openspf.org/) for more details.

More information about Longitude's built-in SMTP server is available in the online help (in the Web UI select Help Contents from the Help menu and navigate to: Help Contents\General Information\Longitude SMTP Server).