Recent Articles

KumoMTA Community Roundup

My favorite part about KumoMTA being Open-Source is our growing community. They not only help each other in our...

ARM Yourself With the KumoMTA Spring Release

We're pleased to announce that the new KumoMTA Spring Release is now available in GA!

Protect Your Deliverability With An Abuse Page

When you operate a multi tenant sending environment compliance is a major portion of your operations, and yet on...

Moving Beyond IP Reputation

NOTE: This post was originally written for Spam Resource, the initial publication can be seen at...

Setting the Record Straight

“First they ignore you, then they laugh at you, then they fight you, then you win.”

KumoMTA is More Than Just Open-Source

tl,dr: KumoMTA is not just Open-Source, it's also the best MTA on the planet for large-scale senders.

Happy Birthday KumoMTA!

It was one year ago that KumoMTA was officially born, with Wez making the first commit to the main repo (see it here)!

Community Roundtable - Analytics

Our next Community Roundtable session is coming next week on Wednesday, January 24, at noon Eastern time.

A New Release for the New Year

Today we are tagging our first release of the new year, ironically designated as version 2023-12-28. Our tags are based...

Defending Against SMTP Smuggling with KumoMTA

What is SMTP Smuggling? On September 18th there was a new exploit published regarding SMTP Smuggling, which you can...