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$0/mo
Try email verification with no commitment.
- 50 verifications / month
- List verifier (paste up to 1,000 emails)
- DMARC, SPF, MX, blocklist tools
- GoHighLevel embed
- Tag write-back to contacts
Bulletin No. 139 · Telemetry online
Posted 19 May 2026
See every postcard
before it goes missing.
MailerMonk watches your sending domains 24/7 — DMARC alignment, sender reputation, blocklist hits, inbox-placement probes. Stop guessing whether your last 5,000 emails actually arrived.
Compatible withGmailWorkspacePostmaster ToolsGoHighLevelSpamhausCloudflareSendgridOutlookMailgunPostmarkGmailWorkspacePostmaster ToolsGoHighLevelSpamhausCloudflareSendgridOutlookMailgunPostmark
Deliverability Bulletin
From: mailermonk.com
Form 04-DMARC
Reputation
—/100
- ·DMARCchecking
- ·SPFchecking
- ·Blocklistschecking
- ·MXchecking
Inbox Placement · last 24h41.0%
postmaster.spam_rate · 0.02%
Mm · Issue 01
Section 02 · Loss audit
The quiet crisis of
undelivered mail.
Roughly 54% of cold outbound never reaches the primary inbox. You don't see the bounces — and neither does your CRM. MailerMonk inspects the whole route.
Outbound · 1,000 sends
In primary inbox
460
- Silent drops · SPF/DKIM misalignment140 · 14%
- Spam folder · domain on blocklist220 · 22%
- Promotions tab · low sender rep180 · 18%
- Primary inbox460 · 46%
Funnel · /api/audit live demo
Section 03 · Instruments
Four instruments,
one operations console.
Each panel below pulls real telemetry in production. Hover any instrument to inspect.
DMARC alignment
Policy enforcement
nonequarantinereject
Sender reputation
Postmaster Tools · 30d
74
+4.2 vs 30d
incident detected · auto-mitigated
Blocklist scan
12 RBLs · 60-min sweep
1 listingof 12 RBLs
Inbox placement
Seed test · last 24h
86%
inbox
- Inbox86%
- Promotions10%
- Spam4%
Section 04 · Route map
The route a postcard
takes before arriving.
Every email crosses five checkpoints. We inspect the cargo at each one.
CHECKPOINT 01DNS
Origin resolved
MailerMonk pulls A, MX, TXT for the sending domain.
What we do here — We resolve every record that affects deliverability in under a second — even before the first email leaves your CRM.
/api/route/dns · sampled every 15min
Section 05 · GoHighLevel
Lives inside
your GHL sub-account.
Verify-on-create, tag write-back, per-sub API keys, bulk list cleaner — all rendered as a native panel in any sub-account you install it on. Below is the actual embed running against demo data.
Install in GHLapp.gohighlevel.com / location · acme-agency · contacts
Contacts · 3filter: all
Sienna Hart
sienna@northwind.example
MailerMonk · Verification
Verdict
Unknown
Last checked
—
Tags written back to GHL contact
none yet
Activitytail -f
- 09:42Embed loaded · agency_id=demo-agency
Section 06 · Disposition
Someone is
always watching.
MailerMonk runs the way a careful postmaster might if they never slept: every DNS record, every blocklist, every postmaster ping — logged, scored, and quietly remembered.
On the right is a sample of the journal — the kind of observation we write down for every domain we look after.
Monk's Journal · today
- 27:08Watching · acme-agency.com TLS-RPT report received.
- 21:51Tea break · DKIM rotation completed for two sub-accounts.
- 15:34Tally · 11 listings cleared in the last 30 days.
- 09:17Sunset check · all enforcement policies still at p=reject.
- 03:00Dawn check · Spamhaus DBL clean across 14 sending domains.
entries auto-redacted for privacytail · 8
Section 07 · Sample post
Try a piece
before you subscribe.
Five free, no-signup checks. Same engines we use behind the scenes.
Sample output · DMARC checker
Inspect the DMARC TXT record at _dmarc.<domain> and parse the policy.
- policy
- p=reject
- alignment
- adkim=s · aspf=s
- rua
- mailto:rua@dmarc.example
- subdomain
- sp=reject
no sign-in requiredRun DMARC checker →
Section 08 · Postage
Priced like
email lists.
One credit verifies one contact. Subscriptions are billed monthly inside the GHL embed; upgrade or downgrade any time with proration.
Estimate · monthly volumerecommend
5kStarter
100250,000
at this volume$29 /mo · $5.80/k
Starter
$29/mo
For one busy GHL sub-account.
- 5,000 verifications / month
- Auto-verify on ContactCreate
- Custom-field write-back
- Per-sub API keys
- Reputation + domain health
- Email alerts
Pro
$79/mo
For agencies running multiple clients.
- 25,000 verifications / month
- Everything in Starter
- Bulk verify-all flows
- Priority Bouncer routing
- Slack alerts
- Webhook + REST integrations
Agency
$199/mo
Outbound agencies at scale.
- 100,000 verifications / month
- Everything in Pro
- Unlimited GHL sub-accounts
- Per-sub credit allocations
- White-label embed (coming soon)
- Priority support
Section 09 · Correspondence
Things people ask
before signing up.
Final · ready when you are
Stop guessing where
your emails actually land.
Seven days free. No credit card. Cancel any time. Start watching a domain in two minutes.
From
mailermonk.com
trial · 7 days · no card
To
<your sending domain>
watched · alerted · improved