diff --git a/Documentation/RelNotes/1.7.5.1.txt b/Documentation/RelNotes/1.7.5.1.txt
new file mode 100644
index 000000000..cfd9b2aa2
--- /dev/null
+++ b/Documentation/RelNotes/1.7.5.1.txt
@@ -0,0 +1,14 @@
+Git v1.7.5.1 Release Notes
+==========================
+
+Fixes since v1.7.5
+------------------
+
+ * The "--date=relative" output format used to say "X years, 12 months"
+   when it should have said "X+1 years".
+
+ * An error message from "git send-email" to diagnose a broken SMTP
+   connection configuration lacked a space between "hello=<smtp-domain>"
+   and "port=<smtp-server-port>".
+
+And other minor fixes and documentation updates.
diff --git a/git-send-email.perl b/git-send-email.perl
index 76565de2e..98ab33aae 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -1091,7 +1091,7 @@ sub send_message {
 			    "VALUES: server=$smtp_server ",
 			    "encryption=$smtp_encryption ",
 			    "hello=$smtp_domain",
-			    defined $smtp_server_port ? "port=$smtp_server_port" : "";
+			    defined $smtp_server_port ? " port=$smtp_server_port" : "";
 		}
 
 		if (defined $smtp_authuser) {