DMARC Checker
Shows whether a DMARC record exists, which policy it sets, how alignment is configured and where reports are sent. Open the DMARC Checker
Free Email Tools
Check one part of a domain’s email setup, or all of it
Free email tools from Yeevu check a domain’s DMARC, SPF, DKIM, MX records, blacklists, SMTP, MTA-STS, TLS-RPT and BIMI. They are for anyone who sends email from their own domain and needs to know why it is not arriving. Run every check in one scan here, or open a single checker below.
Free to run. Need one answer only? Choose a single checker
Authentication
Free email tools for DMARC, SPF and DKIM
Mailbox providers use these three records to decide whether email really comes from the domain it claims. Each checker reads the live DNS record and reports what it finds.
SPF Checker
Confirms the domain publishes an SPF record and that the record is valid, so the servers allowed to send its email are clear. Open the SPF Checker
DKIM Checker
Looks for the domain’s DKIM keys under common selectors and checks that each public key is published correctly. Open the DKIM Checker
Mail servers and reputation
Free tools for email delivery: MX records, blacklists and SMTP
These checks cover where a domain’s email is delivered, whether its mail server answers properly and whether a blacklist is blocking it.
MX Lookup
Lists the domain’s MX records and checks that each mail server resolves, so incoming email has somewhere to go. Open the MX Lookup
Blacklist Checker
Checks the domain and its sending IP addresses against DNS-based email blacklists and names any list they appear on. Open the Blacklist Checker
SMTP Checker
Tests the connection to the domain’s mail server, whether it offers STARTTLS and whether its TLS certificate is valid. Open the SMTP Checker
Encryption and brand
Free tools for email encryption and BIMI
The newer email standards: enforced encryption for incoming email, reports when encryption fails, and a brand logo beside messages in the inbox.
MTA-STS Checker
Checks the MTA-STS DNS record and that the policy file can be reached, so incoming email is required to use encryption. Open the MTA-STS Checker
TLS-RPT Checker
Checks the TLS reporting record, which tells other mail servers where to send reports when an encrypted delivery fails. Open the TLS-RPT Checker
BIMI Checker
Checks the BIMI record that lets a logo appear beside the domain’s email in supporting inboxes such as Gmail and Apple Mail. Open the BIMI Checker
BIMI VMC Checker
Checks the Verified Mark Certificate behind a BIMI logo: its certificate chain, its expiry and whether it matches the domain. Open the BIMI VMC Checker
How it works
How to use the free email tools
Every tool works the same way and takes one input: the domain that sends the email.
-
Enter the sending domain
Use the domain after the @ in the sending address, without www or https.
-
Read the checker result
Each checker shows the record it found and says what is missing or misconfigured.
-
Fix the DNS record
Change the record wherever the domain’s DNS is managed, then run the checker again to confirm it.
-
Keep monitoring the domain
Records change as sending services are added. DMARC monitoring reports on the domain every day.
Done for you
Checked by the tools, fixed by engineers
A checker shows what is wrong; someone still has to change the DNS and the sending services. Yeevu’s email deliverability service sets up SPF, DKIM and DMARC, investigates blacklistings and brings each sender into line. A 20-minute call settles whether that is needed.
Free email tools FAQ
The free email tools from Yeevu check the DNS records and mail servers behind a domain's email: DMARC, SPF and DKIM for authentication, MX records and SMTP for delivery, blacklists for reputation, MTA-STS and TLS-RPT for encryption, and BIMI and its Verified Mark Certificate for the brand logo.
Run the full scan first when the problem is unknown, because it runs every check on the domain at once. Open a single email tool when one record is in question, such as the SPF Checker after adding a new sending service.
The email tools check how a domain is set up, and correct records are only part of inbox placement. Sender reputation, complaint rates, list quality and message content also decide where email lands. Yeevu's email deliverability service investigates those.
The DMARC Checker reads a domain's DMARC record once and shows its policy. DMARC monitoring collects the reports mailbox providers send every day and shows which services are sending email as the domain and whether they pass.
Yes. Mailbox providers show a BIMI logo only for a domain whose DMARC policy is enforced, meaning quarantine or reject. Run the DMARC Checker before the BIMI Checker.