Why a deliverability test matters for you
“Email deliverability” is the probability your mail actually reaches the inbox rather than spam or a silent block. It isn’t one setting — it’s the combined verdict of authentication, reputation, and DNS, and a single weak link drags the whole result down.
For anyone who depends on email — outreach, transactional mail, client communication — deliverability stays invisible until it fails, and when it fails it does so quietly. No bounce, no error, just fewer replies than you expected.
What a real test has to cover
A meaningful test checks SPF (and its hidden 10-lookup limit), DKIM signing on the correct selector, DMARC policy and duplicates, your sending IP’s blacklist status, and your MX setup — then weighs them into one verdict with the most urgent fix first.
Point-checkers that test a single record in isolation miss the interactions: SPF can pass while DKIM fails, DMARC can exist but protect nothing, and an otherwise clean setup can still be undermined by a blacklisted IP.
A single record checked in isolation lies to you: SPF can pass while DKIM fails and DMARC protects nothing.
How Zeqo works for you
This free test runs all of it at once and gives you a single plain-English result plus a prioritized list of what to fix — no interpreting raw DNS, no juggling a dozen separate tools.
Zeqo Mail then makes it continuous: daily automated tests, instant alerts with the exact remediation when anything breaks, a timeline of every DNS change, and a weekly health report you can share.
Run the test once for a snapshot — then connect the domain to get the ongoing early warning that actually protects your sends from here on.