The "alerts" command:
Usage: fossil alerts SUBCOMMAND ARGS...
Subcommands:
- pending
 - Show all pending alerts. Useful for debugging.
 
- reset
 - Hard reset of all email notification tables in the repository. This erases all subscription information. ** Use with extreme care **
 
- send
 - Compose and send pending email alerts. Some installations may want to do this via a cron-job to make sure alerts are sent in a timely manner.
 Options:
- --digest
 - Send digests
 - --renewal
 - Send subscription renewal notices
 - --test
 - Write to standard output
 
- settings [NAME VALUE]
 - With no arguments, list all email settings. Or change the value of a single email setting.
 
- status
 - Report on the status of the email alert subsystem
 
- subscribers [PATTERN]
 - List all subscribers matching PATTERN. Either LIKE or GLOB wildcards can be used in PATTERN.
 
- test-message TO [OPTS]
 - Send a single email message using whatever email sending mechanism is currently configured. Use this for testing the email notification configuration.
 Options:
- --body FILENAME
 - Content from FILENAME
 - --smtp-trace
 - Trace SMTP processing
 - --stdout
 - Send msg to stdout
 - -S|--subject SUBJECT
 - Message "subject:"
 
- unsubscribe EMAIL
 - Remove a single subscriber with the given EMAIL.