add sendmail script

sendmail.py

+#!/usr/bin/python3
+import smtplib
+from email.message import EmailMessage
+
+import argparse
+
+ap = argparse.ArgumentParser()
+ap.add_argument("--recipients", type=argparse.FileType('r'), help="Recipients, one per line", required=True)
+ap.add_argument("--message", type=argparse.FileType('r'), help="Message to send", required=True)
+ap.add_argument("--subject", help="Message subject", required=True)
+ap.add_argument("--sender", help="Mail from", required=True)
+args = ap.parse_args()
+
+message = args.message.read()
+
+for line in args.recipients:
+    if line.startswith("#"):
+        continue
+    if not "@" in line:
+        print(f"Line does not seem to contain @-sign: {line}")
+    recipient = line.strip()
+    if len(line) < 1:
+        continue
+
+    print(f"Sending to {recipient}...")
+    msg = EmailMessage()
+    msg.set_content(message)
+
+    msg['Subject'] = args.subject
+    msg['From'] = args.sender
+    msg['To'] = recipient
+
+    # Send the message via our own SMTP server.
+    s = smtplib.SMTP('localhost')
+    s.send_message(msg)
+    s.quit()