With the free plan I can receive mail to [email protected] address, but if I reply to a message sent to this address I can’t edit the sender field before switching to a paid plan. But if I switch plans are those sender addresses limited to any numbe? Note, I’m referring strictly to username+somestring (and username+anotherstring) style addresses, not to addresses that would contain different username part. Those are limited, ofc.
You should submit a feature request for that. It is possible to send from the aliases on other platforms; might just be something their devs need some critical mass to work on.
I guess I’ll do, since it’s sort of a deal breaker at this point.