approaching prontonmail fix

bin/mw

@@ -165,6 +165,9 @@ EOF
 	for x in $(seq 1 9); do echo "$accounts" | grep "$x" >/dev/null 2>&1 || { export idnum="$x"; break ;}; done
 	[ ! -f "$HOME/.config/msmtp/config" ] && echo "$msmtp_header" > "$HOME/.config/msmtp/config"
 	echo "$msmtp_profile" >> "$HOME/.config/msmtp/config"
+	case "$service" in
+		protonmail.*) protonfinger || return 1 ;;
+	esac
 	echo "$mutt_profile" > "$accdir/$idnum-$title.muttrc"
 	echo "$mbsync_profile" >> "$mbsyncrc"
 	notmuchauto
@@ -174,6 +177,11 @@ EOF
 	echo "macro index,pager i$idnum '<sync-mailbox><enter-command>source $accdir/$idnum-$title.muttrc<enter><change-folder>!<enter>;<check-stats>' \"switch to $fulladdr\" # mw-autogenerated" >> "$muttrc"
 }
 
+protonfinger() { printf "Getting Protonmail bridge fingerprint...\\n"
+	fingerprint="$(msmtp --serverinfo --tls --tls-certcheck=off -a "$title")" || return 1
+	sed -ibu "s/account $title/&\ntls_fingerprint $fingerprint/" "$HOME/.config/msmtp/config"
+}
+
 getpass() { while : ; do pass rm -f "mutt-wizard-$title" >/dev/null 2>&1
 		pass insert "mutt-wizard-$title" && break; done ;}