Deliverability5 min read
Why Shared IPs Are Killing Your Open Rates
Discover how neighbor noise on shared IP pools can devastate your email deliverability and what you can do about it.
November 15, 2025Read article
Latest Insights
Expert guides on email infrastructure and deliverability
10 articles
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
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
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
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
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
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
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
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
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