On the latest version of git-send-email, I see this error just before running SMTP auth (I didn't provide any --smtp-auth= parameter): Use of uninitialized value $smtp_auth in pattern match (m//) at /usr/local/google/home/briannorris/git/git/git-send-email.perl line 1139. Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx> Cc: Jan Viktorin <viktorin@xxxxxxxxxxxxxx> Cc: Eric Sunshine <sunshine@xxxxxxxxxxxxxx> Cc: Junio C Hamano <gitster@xxxxxxxxx> --- git-send-email.perl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/git-send-email.perl b/git-send-email.perl index c5a3f766f7fd..e3ff44b4d0cd 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -1136,7 +1136,7 @@ sub smtp_auth_maybe { # Check mechanism naming as defined in: # https://tools.ietf.org/html/rfc4422#page-8 - if ($smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) { + if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) { die "invalid smtp auth: '${smtp_auth}'"; } -- 2.6.0.rc0.131.gf624c3d -- 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