PTR Record Checker
Enter your sending IP. The tool returns the PTR record, validates it matches the forward (A) record for the sending hostname, and flags missing or mismatched PTR.
Checked. Now see who reads what you send.
A clean setup gets your email delivered. Outsolvi covers what happens next: every open graded as a person or a machine, who clicked and who replied, and follow-ups that stop when someone answers. From $7/user/mo billed yearly, 14-day free trial.
Start free trialChecks forward-confirmed reverse DNS (FCrDNS) from lookups you run yourself. Paste your sending IP, the hostname its PTR record returns, and the A record that hostname resolves to; the tool compares them and explains the FCrDNS mismatch that many MTAs treat as a hard reject signal. No DNS queries happen on this page, so run dig or your DNS host first.
Setting up a new self-hosted MTA. Diagnosing why mail from a dedicated IP suddenly hit spam after weeks of fine delivery.
FAQ
Who sets the PTR record?+
Your IP provider (hosting company, ISP, dedicated-IP provider). You can't set it from your own DNS. you have to request it via the provider's control panel or support.
Keep going
Articles, glossary entries, and other tools on the same topic.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.