MailFlow Monitor
Mail flow is the path a domain’s email takes, which depends on its MX records, authentication, and sending reputation all working together. This snapshot runs those checks once and shows them side by side.
When to use this: Mail is delayed or missing and you want one view of the checks that usually explain it. Command prefix mailflow:
On-demand equivalent
Continuous end-to-end mail-flow monitoring (scheduled test messages, delivery timing, and alerting) is a hosted product feature. ProbeKit is a point-in-time diagnostics suite and does not run background jobs, accounts, or data ingestion.
- • For a one-shot equivalent, run the Email Deliverability report — it checks SPF, DKIM, DMARC, PTR, TLS and blacklists in a single pass.
- • For live SMTP reachability and TLS, use the SMTP Diagnostics tool.
About the MailFlow Monitor
An on-demand snapshot of the checks that keep mail flowing: MX, authentication and reputation in one view.
FAQ
- Is this continuous monitoring?
- No. For ongoing checks with alerts, create monitors from your dashboard.
- What should I check first when mail stops?
- MX records, then the bounce message — paste it into Diagnose.