Delete a mail alias
This program simply removes a single mail alias from a virtual server. It takes only two parameters, --domain to specify the server domain name, and --from to specify the part of the alias before the @ sign. Be careful using it, as it does not prompt for confirmation before deleting. To delete the catch-all alias for a domain, use the option --from "*".
No program exists for updating existing aliases, but the same thing can be achieved by using the delete-alias and create-alias commands to remove and re-create an alias with new settings.
Command line help
virtualmin delete-alias --domain domain.name
--from mailbox|"*"