One Wrong DNS Edit Can Break Your Email Deliverability Overnight
SPF, DKIM, and DMARC records are plain text which means they’re one careless edit away from a syntax error, a duplicate record, or a broken alignment that inbox providers quietly start rejecting mail over. Nobody tells you when this happens. Your bounce rate just climbs.
Seabhac.io continuously re-checks your email authentication records so a bad edit gets caught in minutes, not after a week of missing invoices and support emails.
How it works:
- Fetch the live records: Every run pulls your current SPF, DKIM, and DMARC TXT records directly from DNS.
- Validate syntax and alignment: Checks for structural errors, multiple conflicting SPF records, missing DKIM selectors, and DMARC policy misconfigurations.
- Flag drift immediately: If a record changes or breaks, you're alerted with exactly what changed.
The Failure Modes That Get Missed
- Multiple SPF records RFC 7208 only allows one; a second record (often added by a well-meaning marketing tool) silently invalidates SPF entirely.
- Missing or rotated DKIM selectors a key rotation on the sending platform’s side that never got mirrored in your DNS.
- DMARC policy left at
p=noneoffering visibility but zero actual protection against spoofing.
Works Alongside DMARC Aggregate Reports
Record validation tells you your configuration is correct. It doesn’t tell you how real-world mail is actually being treated by receiving servers that’s what our built-in DMARC Reports feature covers, ingesting and analysing the aggregate reports providers send back. Run both together for the full picture: configuration correctness and real-world compliance.