With hmailserver, when relaying outbound mail, we would like to limit relaying of mails to gmail.com to a selected set of known addresses.
I've tried this with the SMTP 'Route' option where you can define a list of allowed addresses, but apparently this does not support the 'plus addressing' feature.
What would be the way to achieve forwarding to gmail.com domain of a limited set of addresses but allowing their 'plus address' variants to be forwarded also.
Thanks,
Raphael