[Evolution] Evolution and PGP/GPG signature

[Stephane Rozes <stephane rozes celsecat com>]

Hello the list

I use the Evolution mail client on a Debian PC. I installed GPG and I
would like to sign my e-mails.

But when I sign them, the GPG signature is embedded in a .asc file
rather than in the header/footer of the e-mail like this :

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.1

iQEVAwUBQb7feuwxxD18aHUpAQFzTwf9FaVjG/pOfNL5IUW2O1RnRKO6DWTNoS32
4sxu9BYuip2HKBgaTvBlmYnzJ5U0axCWYotz/c1anXUXwcqYZVEl07jIA4coeuw3
rxHBexXMrZR52WNZeTabQoyl0JTF6IyPQzs1uht0vSROV6bhoGJN2yMF7+sFbROM
XPkI4rR451N1s0rNmqoZYj4lu+zP4w8vbnYj/Ck1jvtKEs2cH8qHRKmJtjJJrpAc
jG6sKOzf6NnjI3PHIIkdhOeAt3OWFtw87y/xCtSUjhjsMkRHN/x7PLh2hfG08Aqp
prOtk3riatCuB0Pa+ElAFGU9qI/KnmboU9JNh70jbnz0GNis1hmydg==
=aPvL
-----END PGP SIGNATURE-----

And I search a way to verify the signatures like above with Evolution.

Thank you in advance for your help

Best regards

Stephane