My given URL shows a bug with Enigmail 0.83.2 that is fixed in later versions; please change the version currently specified in Portage. Reproducible: Always Steps to Reproduce: 1. Attempt to send a GPG-signed email with Mozilla Thunderbird 0.5/Enigmail 0.83.2 Actual Results: The first line of the message was removed; this is a documented bug with Enigmail 0.83.2. Expected Results: The first line of the message should have been intact.
Fixed in mozilla-thunderbird-0.5-r1.ebuild with EMVER="0.83.3"