The Infinite Inbox

Forensic Email Analysis

Deep dives into the email infrastructure industry. We expose the hidden costs, security risks, and architectural flaws of legacy providers.

Latest Intelligence

Comparison
6 min read

Postmark vs. Transmit: The 'Dedicated IP' Gatekeeper

Postmark requires manual approval for Dedicated IPs. Transmit gives you Day 1 access via AWS SES. Here is the architecture comparison.

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Cost Analysis
7 min read

Resend vs. Transmit: The 'Scale Trap'

Resend is beautiful until you need logs older than 3 days. Transmit gives you 100% data retention and 10x cheaper scaling.

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Migration
5 min read

Migrating from Mailgun: Escape the Legacy Tax

Mailgun's interface is rotting, and their support is non-existent. Learn how to migrate your reputation to AWS SES without downtime.

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Industry Trend
6 min read

The SendGrid Exodus: Why SaaS is Switching to BYOK

The era of 'Black Box' email providers is over. Discover why fast-growing SaaS companies are moving to 'Bring Your Own Keys'.

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Product Audit
4 min read

Is Mandrill Dead? The 'Zombie Product' Risk

Mandrill hasn't released a major feature in years. You are paying a 'Mailchimp Tax' for a product on life support.

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Technical Guide
5 min read

Exporting SendGrid Templates (The Hard Way)

They built a 'Roach Motel' for your HTML. Easy to get in, impossible to get out. Here are the keys to the exit door.

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Market Shift
5 min read

SparkPost Users Moving Down-Market

SparkPost controls the inbox for the Fortune 500. But if you aren't spending $20k/year, you are a second-class citizen.

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Comparison
8 min read

Comparing SES Wrappers 2026

The definitive guide to AWS SES wrappers: Transmit vs Sendy vs Sidemail. Don't build your own. Don't run PHP scripts.

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Philosophy
4 min read

The Deliverability Transparency Report

Traditional email providers operate in a 'Fog of War'. See how the 'Transparency Report' gives you raw, unfiltered access.

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Interactive Tool
2 min use

The Email Markup Calculator

Calculate exactly how much you are overpaying for SendGrid, Resend, and Postmark vs raw AWS SES costs.

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Engineering
12 min read

Building a Warmup Engine for AWS SES

Learn how we built an automated reputation management system on top of Amazon SES to ensure perfect deliverability.

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Security
5 min read

One-Click Security: Why IAM Roles Win

Why we prioritize IAM roles over access keys for connecting your AWS infrastructure securely.

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Tutorial
8 min read

Wiring Inbound Actions

How we parse inbound emails and route them to webhooks to build powerful two-way workflows.

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