I need to forward all mail sent to an address on my custom domain (e.g., support@domain.com) to an external address without a copy also landing in my Proton inbox.

We have several company addresses that exist only to route mail to other services, like a support address that feeds our helpdesk. Right now every message to those addresses also shows up in my inbox, which clutters it with mail I never need to see there.

What I'm looking for is forward-only behavior: the address receives the mail, sends it on to the destination, and keeps nothing in my mailbox. Fastmail handles this well, and I'd love to see the same option in Proton.