an easy way to attach digital signature

[erikrn]

Hi



Now and then I want to attach my digital signature to 1 (one) e-mail.
I then have forgotten how to do it and use time to find out
And then all my outgoing e-mails requier the digital signature.

I want an easy way to attach the digital signature to just the e-mail I am at the time going to send.

Yours
Erik
Denmark