diff --git a/ddec.py b/ddec.py
old mode 100644
new mode 100755
index b205360..d636a23
--- a/ddec.py
+++ b/ddec.py
@@ -532,7 +532,11 @@ def send_expires_dict_email():
     msg = MIMEMultipart("alternative")
     msg['From'] = SMTP_SENDER
     msg['To'] = CLI.email_to
-    msg['Subject'] = "Expiring domains"
+    subject = "Expiring domains"
+    if CLI.email_subject:
+        msg['Subject'] = subject + ": " + CLI.email_subject
+    else:
+        msg['Subject'] = subject
 
     body_text = "Expiring domains\n%BODY%"
     body_html = """\
@@ -803,6 +807,12 @@ def process_cli():
         metavar="EMAIL"
     )
     parent_group.add_argument(
+        "-subject",
+        "--email-subject",
+        help="Append custom text to the email subject (default is None)",
+        metavar="STRING"
+    )
+    parent_group.add_argument(
         "-ssl",
         "--email-ssl",
         action="store_true",
@@ -869,6 +879,7 @@ def print_namespase():
         f"\tUse Telegram             : {CLI.use_telegram}\n"
         f"\tProxy for Telegram       : {CLI.proxy}\n"
         f"\tEmail to                 : {CLI.email_to}\n"
+        f"\tEmail subject            : {CLI.email_subject}\n"
         f"\tEmail SSL                : {CLI.email_ssl}\n"
         f"\tEmail AUTH               : {CLI.email_auth}\n" 
         f"\tEmail STARTTLS           : {CLI.email_starttls}\n"
@@ -1345,6 +1356,11 @@ def check_cli_logic():
             f"{FLR}You must specify the email address of the recipient. Use the --email_to option")
         sys.exit(-1)
 
+    if CLI.email_subject and (not CLI.email_to):
+        print(
+            f"{FLR}You must specify the email address of the recipient. Use the --email_to option")
+        sys.exit(-1)
+
     if CLI.email_auth and (not CLI.email_to):
         print(
             f"{FLR}You must specify the email address of the recipient. Use the --email_to option")