Events
A mailserver should be able to react on certain events. This could be simply when a mail is send or received. But also when a somebody logs into the mail system, or when a user enrols into a mailinglist.
Events should trigger webhooks which can be managed by the user of the given account.
System wide events should be possible too:
- user registers new account
- user removes account
- mail received globally
- mail send globally
- mail send per account
- mail received per account
- mailinglist enrollment
- mailinglist unsubscribe
etc.
