[Users] can't reply to e-mails with padlock icon displayed at bottom

[Paul]

On Wed, 30 Nov 2016 11:21:52 -0500
Gil Weber <gilweber at bellsouth.net> wrote: 

> However, when I try to reply a box pops up in the middle of the
> screen saying "Error S/MIME Cannot Sign: General error (1)"

You are trying to sign your message using S/MIME, but you don't have
the necessaries. In the Compose window, go to the /Tools/ menu and
uncheck 'Sign', or, in the same menu, choose a Privacy System which
you can use.

with regards

Paul