use String::ShellQuote;
use Time::HiRes qw(usleep gettimeofday tv_interval alarm);
use Scalar::Util 'weaken';
+use Date::Format qw(time2str);
+
use PVE::Syscall;
# avoid warning when parsing long hex values with hex()
open (MAIL, "|-", "sendmail", "-B", "8BITMIME", "-f", $mailfrom, "--", @$mailto) ||
die "unable to open 'sendmail' - $!";
+ my $date = time2str('%a, %d %b %Y %H:%M:%S %z', time());
+
+ my $is_multipart = $text && $html;
+
# multipart spec see https://www.ietf.org/rfc/rfc1521.txt
my $boundary = "----_=_NextPart_001_".int(time).$$;
- print MAIL "Content-Type: multipart/alternative;\n";
- print MAIL "\tboundary=\"$boundary\"\n";
- print MAIL "MIME-Version: 1.0\n";
+ if ($subject =~ /[^[:ascii:]]/) {
+ $subject = Encode::encode('MIME-Header', $subject);
+ }
- print MAIL "FROM: $author <$mailfrom>\n";
- print MAIL "TO: $rcvrtxt\n";
- print MAIL "SUBJECT: $subject\n";
- print MAIL "\n";
- print MAIL "This is a multi-part message in MIME format.\n\n";
- print MAIL "--$boundary\n";
+ if ($subject =~ /[^[:ascii:]]/ || $is_multipart) {
+ print MAIL "MIME-Version: 1.0\n";
+ }
+ print MAIL "From: $author <$mailfrom>\n";
+ print MAIL "To: $rcvrtxt\n";
+ print MAIL "Date: $date\n";
+ print MAIL "Subject: $subject\n";
+
+ if ($is_multipart) {
+ print MAIL "Content-Type: multipart/alternative;\n";
+ print MAIL "\tboundary=\"$boundary\"\n";
+ print MAIL "\n";
+ print MAIL "This is a multi-part message in MIME format.\n\n";
+ print MAIL "--$boundary\n";
+ }
if (defined($text)) {
print MAIL "Content-Type: text/plain;\n";
- print MAIL "\tcharset=\"UTF8\"\n";
+ print MAIL "\tcharset=\"UTF-8\"\n";
print MAIL "Content-Transfer-Encoding: 8bit\n";
print MAIL "\n";
print MAIL $text;
- print MAIL "\n--$boundary\n";
+ print MAIL "\n--$boundary\n" if $is_multipart;
}
if (defined($html)) {
print MAIL "Content-Type: text/html;\n";
- print MAIL "\tcharset=\"UTF8\"\n";
+ print MAIL "\tcharset=\"UTF-8\"\n";
print MAIL "Content-Transfer-Encoding: 8bit\n";
print MAIL "\n";
print MAIL $html;
- print MAIL "\n--$boundary--\n";
+ print MAIL "\n--$boundary--\n" if $is_multipart;
}
close(MAIL);