Created attachment 113091 [details]
GPG public key
I'm not sure if my GPG key is up-to-date in your DB, at least I can't get my account details through the mail gateway:
$ echo 'show' | gpg --clearsign | mail firstname.lastname@example.org
results in a "Unable to determine the sender's address" error response. I also checked that my key is in subkeys.pgp.net.
I attached the key I'm using, could you update your DB with it?
We don't usually change over GPG keys over Bugzilla. Especially as this request is so old, it's difficult to authenticate it. I'll close this bug, but please reopen if you need our help, and we can try to figure out how to make it happen.