Recent Articles

Recent Articles

Announcements, MTA, KumoMTA, mailops, infrastructure, mtabuyersguide, emailengineering

Announcing the 2026 MTA Buyers Guide

The challenge when selecting a new MTA isn’t lack of options — it’s not understanding the tradeoffs for each. We put...
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Release, Announcements, MTA, On-Prem, KumoMTA, General Availability, security, mailops, global

Announcing the KumoMTA Spring 2026 Release

It's not every day you get to celebrate an MTA's Sweet Sixteen, but here we are: today marks the sixteenth release of...
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Meet KumoMTA in San Diego sticker
MTA, On-Prem, KumoMTA, security, mailops, global

It Never Rains In California

Recently, we attended an industry conference in sunny Southern California. This is a fairly important conference from a...
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KumoMTA, mailops, Deliverability, research

The 2026 State of MailOps Report

TL;DR: MailOps didn’t get more complicated — it got less forgiving. The2026 State of MailOps Report reflects what...
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Collage of kcli related charts and documents
MTA, On-Prem, KumoMTA, mailops, visibility, control

Revisiting KCLI

The last time we mentioned kcli top in a blog post was back in July 2024, when we looked at the newly released KumoMTA...
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MTA, On-Prem, mailops, 2025

2025 Year End Summary

As 2025 draws to a close, we’re wrapping up our third year working on KumoMTA (our first commit was in March of 2023)....
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A snowman holding an envelope with KumoMTA on it.
Release, MTA, On-Prem, mailops

The Winter 2025 Release

The Fall release of KumoMTA was only six weeks ago and was one of the largest, with more than 20 enhancements. That...
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On-Prem, Open-Source, security, email, antivirus, mime

Digging MIME

One of the common requests we get is about examining the message by parts to perform security checks, redact private...
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Release, MTA, On-Prem, mailops

What we did on our summer vacation. JK - this is a big one

You have waited much longer than normal for a new KumoMTA release, but the wait is over. We spent the summer grinding...
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