@jan_wagemakers Nice. I'm Also using mutt here on Mobile. To avoid having to store any credentials I'm using pkinit and the Librem5's smartcard reader. I then just need to enter the smartcard pin every once in a while which is simple with krb5-auth-dialog under #phosh (but works also on other mobile environments): https://honk.sigxcpu.org/con/Kerberos_authentication_on_the_Librem_5.html