Check MX, SPF, and DMARC status to prevent email spoofing.
Email is the primary vector for cyberattacks globally. Because the original SMTP email protocol was built without authentication, anyone could theoretically forge an email to look like it came from "billing@yourcompany.com".
To stop this, the industry introduced standard TXT records (SPF, DKIM, and DMARC). These act as cryptographic digital signatures and guest lists, ensuring only authorized servers can send mail on your behalf.
Without proper records, cybercriminals can:
Our tool performs a multi-stage validation check against your domain's authoritative DNS to look for mail-specific misconfigurations.
We strictly adhere to standard RFC protocols instead of making arbitrary guesses about your security.
If your emails are constantly landing in the spam folder, check to see if you are making one of these mistakes:
SPF records have a strict limit of 10 DNS lookups per record. If you include too many services (like Mailchimp, Sendgrid, Zoho, etc. all at once), your SPF record becomes invalid and mail will bounce.
An SPF record ending in `~all` means "Soft Fail" (usually accepted but marked as spam). Modern security practices recommend `-all` ("Hard Fail") to outright reject spoofed messages.
Having a DMARC record that says `p=none` means you are passively monitoring abuse but doing nothing to stop it. It needs to eventually be moved to `p=quarantine` or `p=reject`.
If you use shared hosting, your email might be sharing an IP address with spammers. A dedicated IP isolates your domain reputation.
Sender Policy Framework (SPF) is a list of IP addresses and services approved to send email on your behalf.
Domain-based Message Authentication, Reporting, and Conformance (DMARC) tells receiving servers what to do if an email fails SPF or DKIM checks (e.g., delete it or mark as spam).
Your records might be fine, but if you have a poor IP reputation from sending too many bulk emails, Gmail and Outlook will filter your messages. You need to warm up domains properly.