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Expert guides on email infrastructure and deliverability

10 articles
The Ultimate Guide to IP Warmup Strategies
Best Practices8 min read

The Ultimate Guide to IP Warmup Strategies

Learn the proven volume ramping techniques that establish sender reputation and maximize inbox placement.

November 10, 2025Read more
Understanding DMARC, SPF, and DKIM
Security6 min read

Understanding DMARC, SPF, and DKIM

A simple explanation of email authentication protocols and why they matter for your business.

November 5, 2025Read more
How We Scaled to 10M Emails/Day
Engineering10 min read

How We Scaled to 10M Emails/Day

A technical deep dive into the infrastructure decisions that power high-volume email delivery.

October 28, 2025Read more
The Hidden Cost of Email APIs
Business11 min read

The Hidden Cost of Email APIs

A detailed pricing comparison revealing what email services really cost at scale - with real numbers from SendGrid, Mailgun, Amazon SES, and Postmark.

October 20, 2025Read more
Postmaster Tools: A Deep Dive
Analytics12 min read

Postmaster Tools: A Deep Dive

Master Google Postmaster Tools to understand and improve your email deliverability - with a step-by-step setup guide and real-world metric interpretation.

October 15, 2025Read more
Self-Hosted Email Infrastructure for iGaming: A Complete Guide
iGaming10 min read

Self-Hosted Email Infrastructure for iGaming: A Complete Guide

Why iGaming operators need dedicated email infrastructure and how to set it up without getting banned by ESPs.

February 15, 2026Read more
Why Mailchimp Banned Your Gambling Emails (And What to Do Next)
iGaming7 min read

Why Mailchimp Banned Your Gambling Emails (And What to Do Next)

ESP acceptable use policies ban gambling content. Here is why it happens and how to keep sending.

February 15, 2026Read more
IP Warmup Strategy for Online Casinos with 500K+ Players
iGaming9 min read

IP Warmup Strategy for Online Casinos with 500K+ Players

A specific warmup schedule for high-volume gambling operators dealing with ISP sensitivity to casino content.

February 15, 2026Read more
Email Deliverability Audit Checklist for iGaming Operators
iGaming8 min read

Email Deliverability Audit Checklist for iGaming Operators

A 20-point checklist covering infrastructure, sending practices, content, and compliance for gambling email programs.

February 15, 2026Read more

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