Remember Encryption Status on per-account Basis

Hello,

I have multiple mail accounts, some associated with an OpenPGP, some with an S/MIME account. When composing, MailMate tries to encrypt, but always defaults to S/MIME, even if no such key is present in the current Mail account. This is tedious, since I have to manually change the encryption setting every time I write an email from the accounts associated with the OpenPGP key.
More often than not, I forget it and am greeted with a warning message that I cannot encrypt the mail, after which I have to change the setting and retry sending...

It would be great if MailMate could reliably learn encryption settings on a per-account basis, i.e. switch encryption types when switching accounts.

Thanks!