Email Deliverability Tester
Send a real test email to a temporary Mailrith address. Get a plain-English report on authentication, alignment, sending IP, unsubscribe, links, content, and what to fix before a broad send.
Start Here
Create a temporary address, send a real test email to that address, and keep this page open.
Review the Deliverability Tester Result
This page updates after the test email arrives.
Ready When You Are
Create an address, send the test email to that address, and keep this page open.
About Email Deliverability Tester
A deliverability test is different from a record lookup. Instead of checking only DNS or only the email copy, the Email Deliverability Tester gives you a temporary Mailrith address and waits for the real message you send to it. That lets the report inspect the received email headers, authentication result, visible From domain, return-path, DKIM signing domain, likely sending IP, unsubscribe signals, links, body size, and content clues. If you are setting up a sender domain, start with Sender Domains and Email Authentication.
Use the Email Deliverability Tester before a campaign, launch email, product update, newsletter, or sequence email that will go to many people. Send the test from the same email delivery service, sender domain, template, and tracking setup you plan to use live. The result cannot promise inbox placement at Gmail, Outlook, Yahoo, or company mailboxes, but it can show whether the message has fixable problems before you risk a broad send. If the report mentions alignment, read DMARC Alignment; if it mentions unsubscribe headers, read One-Click Unsubscribe and Opt-Outs.
What Email Deliverability Tester Checks
- Real received-message headers
- SPF, DKIM, DMARC, and alignment results
- Visible From, return-path, and signing domains
- Likely sending IP, PTR, and public blocklist signals
- One-click unsubscribe and visible unsubscribe signals
- Subject, links, body size, and content risk notes
Questions
Can this guarantee inbox placement?
No. The test checks one real message received by Mailrith. It can find setup, header, content, and public reputation risks, but each inbox provider still uses its own private filtering and subscriber-engagement signals.
Is this the same as the SPF, DKIM, DMARC, or Email Spam Checker?
No. The SPF, DKIM, DMARC, and email spam checkers inspect one specific area. The Email Deliverability Tester checks the actual email that was sent to Mailrith, then combines authentication, alignment, sending IP, unsubscribe, link, size, and content signals into one report.
Does Mailrith store the test email?
The Email Deliverability Tester stores a short-lived test report so the page can show the report after your email arrives. The temporary address expires, and the test report is not added to any subscriber list.