Field notes from the email frontier. Permission, engagement, reputation. Long-form posts on how email actually lands — written by people who built one of these things before.

GoodSender Blog

Field notes from the email frontier. Permission, engagement, reputation. Long-form posts on how email actually lands — written by people who built one of these things before.

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Jun 8, 2026 · 3 min
How to Send Email via Claude Desktop
A step-by-step guide to sending email from Claude Desktop using GoodSender's MCP server: add the server, authenticate your workspace, and send your first email without leaving the conversation.
Jun 1, 2026 · 11 min
How to Improve Email Deliverability in 2026: Stop Fighting for the Inbox and Start Earning It
Authentication is the minimum bar to avoid rejection — not a path to the inbox. The three levers that actually move deliverability: permission before the first send, continuous engagement monitoring with automatic suppression, and infrastructure that doesn't punish you for other senders' behavior.
May 25, 2026 · 7 min
Cold Email's Math Broke in 2026. Here's What Replaces It.
Cold email now carries reputation risk most teams underestimate. The more effective replacement is permission-based sending — a smaller, consented, engaged list that the 2026 inbox is built to reward.
Apr 23, 2026 · 7 min
GoodSender vs Mailgun vs SendGrid vs Resend: an honest comparison from people who built one of them
A four-way email API comparison written by people who co-founded one of them. Where Mailgun, SendGrid, Resend, and GoodSender each win — and where each one costs you.
Apr 2, 2026 · 4 min
How consent-gated email works (and why it's free)
Per-email pricing is mostly an abuse-fighting tax. GoodSender's Permission Loop removes the abuse surface by construction — which is why the first 100,000 emails a month cost $0.