Recent Articles

Recent Articles

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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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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MTA, On-Prem, Postfix, Sendmail, Open-Source, Multi-Tenant, Traffic Shaping, mailops, alternative, replacement

Still on Postfix? Lets talk about KumoMTA

Postfix is probably the most recognizable and most accessible email engine available. That does not mean it is the best...
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MTA, KumoMTA, hack

Investing in the next generation

I normally fill this blog space with handy tips about using KumoMTA, but this one is a bit different. I want to talk...
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MTA, On-Prem, Open-Source, momentum, SMTP, mailops, Case Study

Case Study - AWeber

I wanted to share our latest case study with you, it's all about how our good friends at AWeber made the move from...
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MTA, KumoMTA, infrastructure, how to, tutorial

The elusive tutorial

The KumoMTA team answers a metric tonne of questions every week about open-source software, the KumoMTA code, and our...
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MTA, KumoMTA, mailops, email, infrastructure, fast, cpm, roi

KumoMTA Performance Update

Way back in July 2023, we wrote about KumoMTA's performance testing and made some pretty big claims. Since then, we...
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