SIEMLite

Email

The Integrations page has an Email card for the mail server SIEMLite sends email through. (It was on the System page in v0.10; the settings carried over.) Fill in the server, choose the connection security, add a login if the server needs one, and say what address mail is sent from. Send test sends a message with the settings as they are in the form, before you save them, and shows the server's own error if it fails (a wrong password, a port that isn't listening, a certificate that doesn't verify).

Security Usual port Use it for
STARTTLS 587 Most mail providers and relays: starts plain, then upgrades to an encrypted connection.
TLS 465 Servers that expect an encrypted connection from the first byte.
None 25 A relay on a network you trust. The login and every message cross the network in plain text.