Still "Error - no matching private/secret key found" (checked sticky!)

[Boolean Isnull]

I checked the sticky and went trough everything mentioned in https://www.enigmail.net/support/gnupg2_issues.php

When I start gpg-agent --debug-level expert --use-standard-socket --daemon /bin/sh everything works fine.

But then again, when I terminate the gpg-agent above and restart icedove, the problem is back.

How may I resolve this?

enigmail 1.8.2
icedove 31.7.0
gpg (GnuPG) 2.0.28

[Patrick Brunschwig]

I'd recommend you add use-standard-socket to your gpg-agent.conf file and add starting gpg-agent to your .Xsession (or .xinitrc) file.

[Boolean Isnull]

I already have the use-standard-socket in the .gpg-agent.conf, but not the --daemon /bin/sh.. Would it make sense to add that as well?