Is there a way to read/write emails on Emacs, without having any emails or credentials stored locally as plaintext? I'm heavily prioritizing ease of configuration and security over speed or other additional features.
https://github.com/thejefflarson/getpasswd
It accesses the OS keychain to get the right password. I don't use offlineimap -- I use mbsync instead which has a PassCmd option where you can pass in a shell command (e.g. getpasswd <imap-server> <imap-user>). And another tool to add passwords to the GNOME Keychain:
https://github.com/thejefflarson/setpasswd
Adding passwords to the OSX keychain is easy enough, but I found it fiddly in Gnome's GUI. YMMV.
I don't do this and just keep my password in plain-text and use full-disk-encryption, because I don't want to have to be constantly unlocking a keyring to have some background E-Mail syncing job work.
https://www.gnu.org/software/emacs/manual/html_node/auth/Gnu...
When I set it up with gmail tough, I think you either need a 2fa token (which requires 2fa on gmail) or tick "allow unsafe apps" in the admin panel, otherwise you get rejected by gmail. I'm sorry I don't have much info, it's already been a few months I've set it up. However, if anyone's struggling, I'll be glad to help ;)
As for the writing of mail, it culminates in running some kind of sendmail program on your message. If you have sendmail or postfix setup locally to forward mail up to another server, you already don't need to have a password set up in Emacs. But you could also make that program do whatever you want, it just needs to be a binary that accepts certain arguments (or an emacs function that operates on the file).
Otherwise, password-read or something like that.