On Debian Wheezy with its outdated packages, the version of Net::SMTP::SSL is 1.01. If you try to use send-email, the script will crash with the following error: STARTTLS failed! SSL connect attempt failed with unknown error error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed at /usr/libexec/git-core/git-send-email line 1294 Apparently, that is because the script is calling a subroutine (start_SSL()) that is missing in older versions. I guess the script should check the minimum required version before proceeding with the execution. -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html