diff --git a/bin/v-make-separate-ip-for-email b/bin/v-make-separate-ip-for-email
index 0d99ee0c..0dfc68d7 100644
--- a/bin/v-make-separate-ip-for-email
+++ b/bin/v-make-separate-ip-for-email
@@ -139,7 +139,10 @@ fi
 echo "=== Done!"
 
 ptr=$(dig +short -x $MAIL_IP)
-if [ "$PTR" != "$MAIL_HOSTNAME." ]; then
+ptr_len=${#ptr}
+ptr_len=$((ptr_len-1))
+ptr=${ptr:0:ptr_len}
+if [ "$PTR" != "$MAIL_HOSTNAME" ]; then
     echo ""
     echo "WARNING: PTR for $MAIL_IP is $ptr"
     echo "WARNING: PTR for $MAIL_IP should be $MAIL_HOSTNAME"