Re: [PATCHv4 6/6] git-send-email: use git credential to obtain password

diff --git a/git-send-email.perl b/git-send-email.perl
index 76bbfc3..c3501d9 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl

@@ -1045,6 +1045,14 @@ sub maildomain {
 	return maildomain_net() || maildomain_mta() || 'localhost.localdomain';
 }
 
+sub smtp_host_string {
+	if (defined $smtp_server_port) {
+		return "$smtp_server:$smtp_server_port";
+	} else {
+		return $smtp_server;
+	}
+}
+
 # Returns 1 if authentication succeeded or was not necessary
 # (smtp_user was not specified), and 0 otherwise.
 

@@ -1065,7 +1073,7 @@ sub smtp_auth_maybe {
 	# reject credentials.
 	$auth = Git::credential({
 		'protocol' => 'smtp',
-		'host' => join(':', $smtp_server, $smtp_server_port),
+		'host' => smtp_host_string(),
 		'username' => $smtp_authuser,
 		# if there's no password, "git credential fill" will
 		# give us one, otherwise it'll just pass this one.

@@ -1188,9 +1196,7 @@ sub send_message {
 		else {
 			require Net::SMTP;
 			$smtp_domain ||= maildomain();
-			$smtp ||= Net::SMTP->new((defined $smtp_server_port)
-						 ? "$smtp_server:$smtp_server_port"
-						 : $smtp_server,
+			$smtp ||= Net::SMTP->new(smtp_host_string(),
 						 Hello => $smtp_domain,
 						 Debug => $debug_net_smtp);
 			if ($smtp_encryption eq 'tls' && $smtp) {