feat(mail-sender): new SMTP mail sender integration

Send email over SMTP: plain-text and HTML bodies with inline data-URI images, base64 file attachment, CC/BCC, Reply-To and custom headers. Plain / STARTTLS / SSL-TLS with optional authentication. Stdlib-only (smtplib), no extra Python dependencies. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 23:48:23 +02:00
parent 84be770928
commit da3909e79d
3 changed files with 296 additions and 0 deletions
@@ -0,0 +1,54 @@
+import json, os, smtplib, ssl, sys
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def connect(cfg):
+    host = str(cfg.get("host") or "")
+    port = int(cfg.get("port") or 25)
+    fqdn = (str(cfg.get("fqdn") or "").strip()) or None
+    tls = str(cfg.get("tls") or "None")
+    ctx = None
+    if cfg.get("insecure"):
+        ctx = ssl.create_default_context()
+        ctx.check_hostname = False
+        ctx.verify_mode = ssl.CERT_NONE
+    if tls == "SSL/TLS":
+        server = smtplib.SMTP_SSL(host, port, local_hostname=fqdn, context=ctx, timeout=60)
+    else:
+        server = smtplib.SMTP(host, port, local_hostname=fqdn, timeout=60)
+    server.ehlo()
+    if tls == "STARTTLS" or str(tls).lower() == "true":
+        server.starttls(context=ctx)
+        server.ehlo()
+    user = str(cfg.get("username") or "")
+    if user:
+        server.login(user, str(cfg.get("password") or ""))
+    return server
+
+
+def main():
+    cfg = _cfg()
+    if not cfg.get("host"):
+        raise Exception("host is not set")
+    server = connect(cfg)
+    try:
+        server.noop()
+    finally:
+        try:
+            server.quit()
+        except Exception:
+            pass
+    print(json.dumps({"ok": True, "host": cfg.get("host"), "tls": cfg.get("tls") or "None"}))
+
+
+try:
+    main()
+except smtplib.SMTPException as e:
+    print(json.dumps({"error": "SMTP error: " + str(e)}))
+    sys.exit(1)
+except Exception as e:
+    print(json.dumps({"error": str(e)}))
+    sys.exit(1)