iGaming Casino Sportsbook Affiliates

Your Players Aren’t
Getting Your Emails

The email warm-up tool built for casino and betting senders. Improve inbox placement, protect sender reputation, and stop losing players to spam folders

No Credit Card Required | Cancel Anytime

97% Deliverability
61% Open rate
24% Click rate
0% Spam rate

Trusted By Very High-Volume Senders

Trusted By Very
High-Volume

Senders

Trusted By Very
High-Volume

Senders

A black circle with a white squiggly line resembling the letter M, next to the word motion in lowercase black text on a light gray background.
The image displays the word awesomic in bold, black lowercase letters on a light gray background, with an asterisk and a dot following the final letter.
Logo for Benchmark International featuring a symmetrical, abstract geometric design above the words BENCHMARK INTERNATIONAL in uppercase, elegant black font on a light background.
UserWay logo with a stylized U symbol to the left, and the text USERWAY a Level Access company to the right in bold and regular fonts on a light background.
The Quicklizard logo features a stylized Q with a small lizard foot emerging from it, followed by the word QUICKLIZARD in bold, black, uppercase letters.
The image displays the word Selling.com in bold, black font on a light gray background.
The word You written in large, black cursive font, followed by the word TEAM in smaller, bold, uppercase letters on a light background.
The image shows the word aid in lowercase, with the letter d stylized as a play button symbol and a dot next to it, all in bold black font on a light background.
Black Lusha logo with a graphic of a head wearing glasses and hair in a bun, positioned to the left of the text, on a light background.
The image shows the word pathrise in bold, black lowercase letters, with the vertical line of the p stylized as an upward-pointing arrow. The background is light gray.
Plivo logo featuring a black cloud outline with a keypad inside, next to the word plivo in bold, lowercase black letters on a light background.
The image shows the adpushup logo in bold, black lowercase letters on a light gray background.
A black circle with a white squiggly line resembling the letter M, next to the word motion in lowercase black text on a light gray background.
The image displays the word awesomic in bold, black lowercase letters on a light gray background, with an asterisk and a dot following the final letter.
Logo for Benchmark International featuring a symmetrical, abstract geometric design above the words BENCHMARK INTERNATIONAL in uppercase, elegant black font on a light background.
UserWay logo with a stylized U symbol to the left, and the text USERWAY a Level Access company to the right in bold and regular fonts on a light background.
The Quicklizard logo features a stylized Q with a small lizard foot emerging from it, followed by the word QUICKLIZARD in bold, black, uppercase letters.
The image displays the word Selling.com in bold, black font on a light gray background.
The word You written in large, black cursive font, followed by the word TEAM in smaller, bold, uppercase letters on a light background.
The image shows the word aid in lowercase, with the letter d stylized as a play button symbol and a dot next to it, all in bold black font on a light background.
Black Lusha logo with a graphic of a head wearing glasses and hair in a bun, positioned to the left of the text, on a light background.
The image shows the word pathrise in bold, black lowercase letters, with the vertical line of the p stylized as an upward-pointing arrow. The background is light gray.
Plivo logo featuring a black cloud outline with a keypad inside, next to the word plivo in bold, lowercase black letters on a light background.
The image shows the adpushup logo in bold, black lowercase letters on a light gray background.

Why iGaming Email Deliverability is Harder Than Any Other Industry

Why iGaming Email
Deliverability
is
Harder Than Any
Other Industry

Why iGaming Email
Deliverability
is
Harder Than Any
Other Industry

42%

Chance your casino bonus email lands in spam

21%

Average open rate in gambling without warm-up

58%

Inbox placement rate for cold gambling domains (vs 91% after warm-up)

1

Gambling content gets flagged

ISPs scan for casino and betting language, then quietly route campaigns to spam or the promotions tab. Open rates crater with no explanation.

2

Cold domains burn fast

Blast a fresh domain to 200k players and its reputation is gone in a day. Without warm-up, high volume is a liability, not an advantage.

3

Affiliate lists drag you down

Player data sourced through affiliates is full of dead addresses and spam traps. One bad send can permanently damage a domain you spent months building – and some never recover.

A Deliverability Layer
Built For Gambling Senders

A Deliverability
Layer Built For
Gambling
Senders

A Deliverability
Layer Built For
Gambling
Senders

Warmy sits under whatever CRM or ESP you already use. It doesn’t send your campaigns and it doesn’t care that they’re gambling – it makes sure the inbox trusts your domain when you hit send

Warmy sits under whatever CRM or ESP you already use. It doesn’t send your campaigns and it doesn’t care that they’re gambling – it makes sure the inbox trusts your domain when you hit send

Warm up the domain

Automated, human-like warm-up across Gmail, Outlook, Yahoo, and more builds trust for 2–4 weeks before your first real casino campaign

Inbox Placement Testing

Before sending to your players, run a placement test. See exactly where your campaign lands across every major provider: inbox, promotions, or spam.

Monitor and protect

Live reputation, blacklist, and SPF/DKIM/DMARC monitoring alerts you the moment a domain slips – so you fix it before it costs you a campaign

Every Casino Email Marketing Send, Actually Delivered

Every Casino Email
Marketing
Send,
Actually Delivered

Every Casino Email
Marketing
Send,
Actually Delivered

Every stage of your player lifecycle depends on inbox delivery.
Warmy makes sure none of them fail

Every stage of your player lifecycle
depends on inbox delivery.
Warmy makes sure none of them fail

Every stage of your player lifecycle
depends on inbox delivery.
Warmy makes sure none of them fail<!– wp:acf/igaming-remark {“name”:”acf/igaming-remark”,”data”:{“title”:”\u003ch2\u003eWorks with the \u003cstrong\u003eCRM and ESP\u003c/strong\u003e\r\nyou already run\u003c/h2\u003e”,”_title”:”field_igr_title”,”description”:”Warmy connects to any sending setup via SMTP – so whatever CRM or ESP your team already uses, your domains get warmed and protected. No migration, no switching providers”,”_description”:”field_igr_description”,”labels_0_label”:”Any ESP via SMTP”,”_labels_0_label”:”field_igr_label_text”,”labels_1_label”:”iGaming CRM platforms”,”_labels_1_label”:”field_igr_label_text”,”labels_2_label”:”Custom SMTP and Amazon SES”,”_labels_2_label”:”field_igr_label_text”,”labels”:3,”_labels”:”field_igr_labels”,”igaming_remark_custom_desktop_hide_on_desktop”:”0″,”_igaming_remark_custom_desktop_hide_on_desktop”:”field_igr_desktop_hide”,”igaming_remark_custom_desktop_title”:””,”_igaming_remark_custom_desktop_title”:”field_igr_desktop_title”,”igaming_remark_custom_desktop_description”:””,”_igaming_remark_custom_desktop_description”:”field_igr_desktop_desc”,”igaming_remark_custom_desktop_background_color”:””,”_igaming_remark_custom_desktop_background_color”:”field_igr_desktop_bg”,”igaming_remark_custom_desktop_section_padding”:””,”_igaming_remark_custom_desktop_section_padding”:”field_igr_desktop_padding”,”igaming_remark_custom_desktop_section_margin”:””,”_igaming_remark_custom_desktop_section_margin”:”field_igr_desktop_margin”,”igaming_remark_custom_desktop”:””,”_igaming_remark_custom_desktop”:”field_igr_custom_desktop”,”igaming_remark_custom_tablet_hide_on_tablet”:”0″,”_igaming_remark_custom_tablet_hide_on_tablet”:”field_igr_tablet_hide”,”igaming_remark_custom_tablet_title”:”\u003ch2\u003eWorks with the\r\n\u003cstrong\u003eCRM and ESP\u003c/strong\u003e\r\nyou already run\u003c/h2\u003e”,”_igaming_remark_custom_tablet_title”:”field_igr_tablet_title”,”igaming_remark_custom_tablet_description”:””,”_igaming_remark_custom_tablet_description”:”field_igr_tablet_desc”,”igaming_remark_custom_tablet_background_color”:””,”_igaming_remark_custom_tablet_background_color”:”field_igr_tablet_bg”,”igaming_remark_custom_tablet_section_padding”:””,”_igaming_remark_custom_tablet_section_padding”:”field_igr_tablet_padding”,”igaming_remark_custom_tablet_section_margin”:””,”_igaming_remark_custom_tablet_section_margin”:”field_igr_tablet_margin”,”igaming_remark_custom_tablet”:””,”_igaming_remark_custom_tablet”:”field_igr_custom_tablet”,”igaming_remark_custom_mobile_hide_on_mobile”:”0″,”_igaming_remark_custom_mobile_hide_on_mobile”:”field_igr_mobile_hide”,”igaming_remark_custom_mobile_title”:”\u003ch2\u003eWorks with the\r\n\u003cstrong\u003eCRM and ESP\u003c/strong\u003e\r\nyou already run\u003c/h2\u003e”,”_igaming_remark_custom_mobile_title”:”field_igr_mobile_title”,”igaming_remark_custom_mobile_description”:””,”_igaming_remark_custom_mobile_description”:”field_igr_mobile_desc”,”igaming_remark_custom_mobile_background_color”:””,”_igaming_remark_custom_mobile_background_color”:”field_igr_mobile_bg”,”igaming_remark_custom_mobile_section_padding”:””,”_igaming_remark_custom_mobile_section_padding”:”field_igr_mobile_padding”,”igaming_remark_custom_mobile_section_margin”:””,”_igaming_remark_custom_mobile_section_margin”:”field_igr_mobile_margin”,”igaming_remark_custom_mobile”:””,”_igaming_remark_custom_mobile”:”field_igr_custom_mobile”},”align”:”full”,”mode”:”preview”} /–>

Welcome and onboarding

Registration, first-deposit, and first-bet flows only convert if they hit the inbox in the first crucial hours

Bonus and promo blasts

Run a placement test before each blast and send from a trusted domain so bonuses land in inbox, not promotions

Player reactivation

Win-back campaigns hit old, low-engagement addresses. Warmy keeps reactivation deliverability high

VIP and loyalty

Your highest-value players expect their VIP invites on time. Protected inbox placement means loyalty emails never sit unseen

Works with the CRM and ESP
you already run

Works with the
CRM and ESP
you already run

Works with the
CRM and ESP
you already run

Warmy connects to any sending setup via SMTP – so whatever CRM or ESP your team already uses, your domains get warmed and protected. No migration, no switching providers

Any ESP via SMTP iGaming CRM platforms Custom SMTP and Amazon SES

What Better
Deliverability Is Worth

What Better
Deliverability
Is Worth

What Better
Deliverability
Is Worth

Icon 4
2.3×

Higher open rates

Icon 3
95%

Inbox placement

Icon 6
−35%

Emails marked as spam

Illustrative example based on typical lift. Actual results depend on list quality, content, and sending history

Since moving our casino domains onto Warmy, inbox placement on reactivation campaigns jumped from the low-60s to the mid-90s – and we finally stopped burning fresh domains every launch

Retention Manager

Frequently Asked
Questions

Why do my casino promotional emails keep going to spam?

Gambling content gets extra scrutiny from mailbox providers, and high-volume promo sending on a cold or under-warmed domain trips spam filters almost immediately. The reliable fix is a warmed-up sending domain, correct SPF/DKIM/DMARC, clean lists, and consistent engagement. Warmy automates the warm-up and reputation side so the content isn’t what sinks you.

Is Warmy built for iGaming email deliverability?

It’s built for exactly this. Warmy combines automated domain warm-up, inbox placement testing, and live reputation monitoring targeting the specific reasons casino and betting emails land in spam. Because Warmy isn’t an ESP, it supports gambling senders that mainstream marketing tools reject. Casino, sportsbook, and affiliate operators use it for high-volume sending.

Can I use Warmy if my ESP rejected my gambling account?

Yes. Warmy is a deliverability tool, not an ESP. It never sends your campaigns, so it doesn’t restrict gambling or casino content the way most mainstream platforms do. It warms up and monitors the domains and mailboxes you already own. You send through whatever provider or CRM allows iGaming traffic and Warmy makes sure your domain is trusted when you do.

How long does it take to warm up a domain for casino emails?

Plan for 2 to 4 weeks, depending on the daily volume you’re building toward. Warmy ramps sending gradually and adjusts the pace based on how Gmail, Outlook, and others respond. You’re following real signals, not a fixed calendar. Higher target volumes take longer and Warmy sets the schedule automatically.

How do I test inbox placement before sending to my player base?

Run a placement test in Warmy before every major send. You’ll see exactly where your campaign lands across Gmail, Outlook, Yahoo, and more: inbox, promotions, or spam, provider by provider, before a single real player receives it. You can run this test at any point during warm-up or before any campaign goes out.

Why are my casino bonus emails landing in the promotions tab instead of the inbox?

The promotions tab is a Gmail sorting decision, not a spam verdict. It’s triggered by promotional formatting, bulk-style HTML, image-heavy templates, and low recent engagement. Simpler, more personal-looking bonus emails from a warmed, reputable domain are far more likely to land in the primary inbox. Warmy builds the domain trust and engagement history that pulls you out of promotions.

Email marketing for gambling isn’t the same job as marketing for retail or SaaS. The volume is higher, the content trips more filters, and one careless promo blast can blacklist a domain you spent months building.

Warmy is the layer that handles it — continuous domain warm-up, inbox placement testing, and reputation monitoring that runs on its own, tuned for the sending patterns casino, sportsbook, and affiliate brands actually run.

FREE TOOLS

Test your email deliverability with our free tools

Ensure your emails reach the inbox. Use our suite of deliverability tests, spam & template checkers to optimize your outreach.

Need more email spam testing?

*No Credit Card Required

For Casino and iGaming Senders

Stop Losing Reactivation
Revenue
To Spam Folders

Stop Losing
Reactivation
Revenue
To Spam
Folders

Stop Losing
Reactivation
Revenue
To Spam
Folders

Book a 20-minute call. We’ll show you where your casino emails are landing today

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