Fresco hands reaching, passing an envelope

Deliverability for betting & casino

Reach every
player.
Skip the spam folder.

Filters bury gambling email harder than any vertical. Folderol rebuilds your sending infrastructure so every promo, deposit match and VIP reactivation lands where players see it, and turns deliverability into deposits.

Check my inbox placement → See the results

42→94%

typical placement lift

$4.8M

pipeline recovered

120+

operators monitored

Built for every iGaming vertical

Online CasinosSportsbooksPoker RoomsLotteriesSocial CasinosBingo

The problem

iGaming email is buried
by design.

Mailbox providers treat gambling as high-risk. One bad sending burst and your whole domain gets throttled for weeks, taking your reactivation revenue with it.

01 / AUTH

Spoof-prone domains

Broken SPF, DKIM and DMARC tell Gmail your bonus blast might be a phishing attack. Straight to junk.

02 / REPUTATION

Volatile reputation

Big promo spikes, stale lists and complaint-heavy players tank sender scores faster in gambling than anywhere.

03 / CONTENT

Flagged language

“Free spins”, “deposit now”, “winner”: the words that convert are the words filters score as spam.

Our approach

Fix the plumbing.
Then scale the volume.

The full method →

STAGE 01

Audit

Map every sending domain and benchmark placement across Gmail, Outlook & Yahoo.

STAGE 02

Repair

Authentication rebuilt, blacklists cleared, domains warmed and segmented by use case.

STAGE 03

Optimize

Promo copy and cadence tuned so engagement lifts reputation instead of breaking it.

STAGE 04

Monitor

Always-on placement tests and blacklist watches catch drift before it costs you deposits.

Free tools

Diagnose your deliverability in 30 seconds.

Open all tools →

Quick inbox placement check

Enter your sending domain and we'll estimate where your email is landing right now.

Illustrative sample. Run the full multi-provider test in Tools.

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awaiting domain

Inbox Placement Checker

See your live placement split across inbox, promotions and spam.

Spam-Word Checker

Paste a promo and we'll flag the trigger words quietly killing your reach.

DMARC / SPF / DKIM

Check your authentication records and get the exact fix in plain English.

Revenue-at-Risk Calculator

Estimate the deposits you're losing to the spam folder every month.

Subject-Line Tester

Score open-rate potential and spam risk before you hit send.

Sender Reputation Grader

Grade your domain A-F and see what's dragging the score down.

Case study

KNTX · Social casino, US, 500K+ users

Folderol rebuilt KNTX’s deliverability in four months: click-through climbed from 0.01% to 3% and inbox placement recovered to ~50% across a 500K-user database.

VP

Anastasia Petrenko

VP of Marketing · KNTX

See the results →

Outcomes · 4-month recovery

Inbox placement~50%

Click-through rate0.01% → 3%

Unreachable contacts~20% → cleaned

Open & engagementrestored

96%

average inbox placement, post-program

3.2×

lift in promo click-through, same volume

<1%

spam complaint rate, sustained

Questions operators ask

Why is gambling email treated differently? +

Mailbox providers classify iGaming as high-risk, so the filtering thresholds are stricter. The same campaign that inboxes for a SaaS brand can land in spam for an operator. That’s exactly why infrastructure and reputation work matters more here.

How fast do we see results? +

Most operators see meaningful placement lift within 2-4 weeks once authentication is repaired and warmup begins. Full programs reach target placement in 8-12 weeks.

Do you need access to our ESP? +

Read-only access to your DNS and sending tools is enough to audit and repair. We never touch your player data, only the sending infrastructure around it.

Is this compliant for regulated markets? +

Yes. Everything we do strengthens authentication and consent hygiene, which aligns directly with regulator expectations in the EU, UK and US markets we operate in.

Let's get your
email to players.

Book a free deliverability audit. We'll show you exactly where your email is landing today, and the revenue you'll recover by fixing it.

Book a free audit → hello@folderly.com

Reach everyplayer.Skip the spam folder.

iGaming email is buriedby design.