Adding "From Addresses" (rather than just the forced default address)
I use Thunderbird Nebula to access my Protonmail account. In Protonmail, I have over 20 aliases for my email address. (Each address comes into my main mail box.) When I use my Protonmail account on a webpage, I can change the "From address" to be any of my 20 aliases when I reply to or forward an email.
However, when I use Thunderbird to access my Protonmail, it only allows me to forward email from my default address, not my aliases.
This is a deal breaker for me because I must be able to send email from any of my aliases.
When I try to forward from a different custom from address, I get a message that it is possible, to send from different addresses, but I cannot find any directions online or in forums or in help or in the menus. Can anyone help me, please?
Customize From Address
Opaite Mbohovái (1)
I may not be able to advise, but I have no problem using aliases to forward email, so maybe more specifics on your aliases or account setting may improve responses,