Outbox Icons

[ZainW]

HeroIcons has a great set of inbox icons with arrows pointing down
I think it would be a good idea to also have some with the arrows pointing upward to signify outboxes as opposed to inboxes

examples from other iconsets (taken from icones)

[ndri]

I added inbox-arrow-up to Sidekickicons, which are meant to be used as a companion to Heroicons. See it here: https://sidekickicons.com/icons/inbox-arrow-up