diff options
| -rwxr-xr-x | git-send-email.perl | 80 |
1 files changed, 77 insertions, 3 deletions
diff --git a/git-send-email.perl b/git-send-email.perl index d612ae8729..33bcfb4e76 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -64,6 +64,8 @@ git send-email [options] <file | directory | rev-list options > --smtp-pass <str> * Password for SMTP-AUTH; not necessary. --smtp-encryption <str> * tls or ssl; anything else disables. --smtp-ssl * Deprecated. Use '--smtp-encryption ssl'. + --smtp-domain <str> * The domain name sent to HELO/EHLO handshake + --smtp-debug <0|1> * Disable, enable Net::SMTP debug. Automating: --identity <str> * Use the sendemail.<id> options. @@ -130,6 +132,8 @@ my $have_email_valid = eval { require Email::Valid; 1 }; my $have_mail_address = eval { require Mail::Address; 1 }; my $smtp; my $auth; +my $mail_domain_default = "localhost.localdomain"; +my $mail_domain; sub unique_email_list(@); sub cleanup_compose_files(); @@ -187,6 +191,8 @@ my ($identity, $aliasfiletype, @alias_files, @smtp_host_parts); my ($validate, $confirm); my (@suppress_cc); +my ($debug_net_smtp) = 0; # Net::SMTP, see send_message() + my $not_set_by_user = "true but not set by the user"; my %config_bool_settings = ( @@ -273,6 +279,8 @@ my $rc = GetOptions("sender|from=s" => \$sender, "smtp-pass:s" => \$smtp_authpass, "smtp-ssl" => sub { $smtp_encryption = 'ssl' }, "smtp-encryption=s" => \$smtp_encryption, + "smtp-debug:i" => \$debug_net_smtp, + "smtp-domain:s" => \$mail_domain, "identity=s" => \$identity, "annotate" => \$annotate, "compose" => \$compose, @@ -836,6 +844,62 @@ sub sanitize_address } +# Returns the local Fully Qualified Domain Name (FQDN) if available. +# +# Tightly configured MTAa require that a caller sends a real DNS +# domain name that corresponds the IP address in the HELO/EHLO +# handshake. This is used to verify the connection and prevent +# spammers from trying to hide their identity. If the DNS and IP don't +# match, the receiveing MTA may deny the connection. +# +# Here is a deny example of Net::SMTP with the default "localhost.localdomain" +# +# Net::SMTP=GLOB(0x267ec28)>>> EHLO localhost.localdomain +# Net::SMTP=GLOB(0x267ec28)<<< 550 EHLO argument does not match calling host +# +# This maildomain*() code is based on ideas in Perl library Test::Reporter +# /usr/share/perl5/Test/Reporter/Mail/Util.pm ==> sub _maildomain () + +sub maildomain_net +{ + my $maildomain; + + if (eval { require Net::Domain; 1 }) { + my $domain = Net::Domain::domainname(); + $maildomain = $domain + unless $^O eq 'darwin' && $domain =~ /\.local$/; + } + + return $maildomain; +} + +sub maildomain_mta +{ + my $maildomain; + + if (eval { require Net::SMTP; 1 }) { + for my $host (qw(mailhost localhost)) { + my $smtp = Net::SMTP->new($host); + if (defined $smtp) { + my $domain = $smtp->domain; + $smtp->quit; + + $maildomain = $domain + unless $^O eq 'darwin' && $domain =~ /\.local$/; + + last if $maildomain; + } + } + } + + return $maildomain; +} + +sub maildomain +{ + return maildomain_net() || maildomain_mta() || $mail_domain_default; +} + # Returns 1 if the message was sent, and 0 otherwise. # In actuality, the whole program dies when there # is an error sending a message. @@ -938,13 +1002,19 @@ X-Mailer: git-send-email $gitversion if ($smtp_encryption eq 'ssl') { $smtp_server_port ||= 465; # ssmtp require Net::SMTP::SSL; - $smtp ||= Net::SMTP::SSL->new($smtp_server, Port => $smtp_server_port); + $mail_domain ||= maildomain(); + $smtp ||= Net::SMTP::SSL->new($smtp_server, + Hello => $mail_domain, + Port => $smtp_server_port); } else { require Net::SMTP; + $mail_domain ||= maildomain(); $smtp ||= Net::SMTP->new((defined $smtp_server_port) ? "$smtp_server:$smtp_server_port" - : $smtp_server); + : $smtp_server, + Hello => $mail_domain, + Debug => $debug_net_smtp); if ($smtp_encryption eq 'tls' && $smtp) { require Net::SMTP::SSL; $smtp->command('STARTTLS'); @@ -963,7 +1033,11 @@ X-Mailer: git-send-email $gitversion } if (!$smtp) { - die "Unable to initialize SMTP properly. Is there something wrong with your config?"; + die "Unable to initialize SMTP properly. Check config and use --smtp-debug. ", + "VALUES: server=$smtp_server ", + "encryption=$smtp_encryption ", + "maildomain=$mail_domain", + defined $smtp_server_port ? "port=$smtp_server_port" : ""; } if (defined $smtp_authuser) { |