SPF / DKIM / DMARC / MX / 39 blacklists

Know your email is going to spam before your recipients do.

Inboxight watches your records around the clock, and tells you the moment one breaks — with the explanation and the fix, not an error code.

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MONITORED — acme.com 6 min ago
42

Deliverability score
2 problems · 2 watches

SPF Your SPF triggers 12 DNS lookups, the limit is 10.
DKIM The key on selector k1 is 1024 bits.
DMARC You are watching, not protecting (p=none).
RBL IP 198.51.100.10 is listed on Spamhaus ZEN.
Spamhaus ZEN Barracuda SpamCop CBL PSBL Manitu Mailspike SpamRats SURBL URIBL +29 more — checked every hour

How it works

Five minutes to set up. Then you stop thinking about it.

STEP 1 Add your domain Type it in. No DNS change, no code snippet, no verification email. The first full check runs in under a minute.
+ acme.com
STEP 2 We watch, continuously DNS records checked up to every 30 minutes, 39 blacklists up to every hour, DMARC reports collected daily.
next sweep in 22 min
STEP 3 You get one useful alert When something breaks — and only when it's confirmed twice — you get the cause, the impact, and the numbered fix.
SPF alert → email · slack · webhook

What we monitor

Everything that decides inbox vs. spam.

Deliverability rarely fails loudly. A record expires, a key gets rotated, an IP lands on a list — and your open rate quietly halves.

SPF Syntax, lookup count, permissive mechanisms, missing senders. The 10-lookup limit is the #1 silent killer.
DKIM 35 common selectors probed, key length, deleted or rotated keys caught within the hour.
DMARC Policy strength, alignment, and readable reports: who sends in your name, and whether it passes.
MX + BLACKLISTS Mail routing health, plus your IPs and domain against 39 RBLs — with the delisting link when you're on one.

The alert

An alert you can act on before your coffee is cold.

No cryptic error codes. Every alert says what broke, what it does to your mail, and the exact steps to fix it — with the delisting link when a blacklist is involved.

  • Confirmed on 2 consecutive checks — no false alarms
  • Grouped when everything breaks at once
  • Email, Slack, or signed webhook
[inboxight] PROBLEM

acme.com — SPF — confirmed on 2 consecutive checks

Your SPF triggers 12 DNS lookups and the limit is 10.

What to do 1. Drop the services you no longer use 2. Flatten the includes you keep 3. Re-check after you change it

Who sends as acme.com — last 30 days

Google Workspace 100% pass
Sendgrid 99% pass
Zendesk 71% pass
Unknown — 185.220.x.x 0% pass

DMARC reports

DMARC reports a human can read.

Raw DMARC reports are zipped XML nobody opens. Point your rua record at one Inboxight address and you finally see every service sending in your name — legitimate or not — and whether it passes.

How aggregation works →

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