From: Matthias-Christian Ott Date: Wed, 30 Apr 2014 19:43:21 GMT Subject: git send-email doesn't work with IPv6 and STARTTLS Message-ID: <53615259.90200@mirix.org> $ git --version git version 1.8.5.5 git send-email uses Net::SMTP connections that use STARTTLS. Net::SMTP does not support IPv6. I patched Net:SMTP to use IO::Socket::INET6 and it worked. - Matthias-Christian Ott