Recent Articles

Tenant Shaping

We have had many conversations with users and prospective customers about shaping message delivery based on a...

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)!

High Volume Email on Microsoft?

If you are a Microsoft fan and want all your tech to be Microsoft branded, you likely have felt a little disappointed...

AboutMyEmail Testing Tool

MailOps engineers have a lot on their plates. If it's not a firewall thing, its a server thing, or a DNS thing, or a...

A (really) quick KumoMTA install

As a mailops engineer, there are many times when you may want to spin up a quick install of your MTA to test a theory,...

Moving From Momentum

There are only a handful of email MTA engines capable of operating at the speeds KumoMTA does. One that was popular in...

Community Roundtable - Analytics

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

Moving from PowerMTA

A while ago we published a blog on the easy conversion process to move from other MTA configs to KumoMTA. In this post,...

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...