MTA-STS & TLS-RPT on a Mac
Enforce SMTP TLS and get TLS failure reports (standard) · Email Deliverability & Reputation
MTA-STS tells sending servers to require valid TLS when delivering to your domain (via an _mta-sts TXT record plus a policy file served over HTTPS at mta-sts.), closing downgrade/MITM gaps; TLS-RPT (_smtp._tls TXT) collects daily reports of TLS negotiation failures so you can spot delivery problems. Publish the records, host the policy file, and feed TLS-RPT into a reporting tool. Pairs with the Mail Server pane.
Run MTA-STS & TLS-RPT with FrontierStack
FrontierStack lists MTA-STS & TLS-RPT in its Email Deliverability & Reputation catalog. Install or connect it from one place, then monitor its status, ports and certificate, secure it with the firewall and Malware Audit, and back it up.
Run it all from one Mac app.
FrontierStack installs, monitors and secures the whole stack — locally and across your fleet — from a single native macOS app.
Download FrontierStack