On my computer, I use aerc[1] with an extra patch to sign outgoing emails by def...

On my computer, I use aerc[1] with an extra patch to sign outgoing emails by default. I try to never check emails on my phone, but I do have an emergency mailbox which I use FairMail[3] to get notifications for.

[1] https://aerc-mail.org/

[2] https://lists.sr.ht/~sircmpwn/aerc/patches/14523/

[3] https://email.faircode.eu/