Recent Articles

Recent Articles

DKIM, SMTP, KumoMTA Integrations, OpenBao

Integrating OpenBao with KumoMTA

This is effectively a guest post from CM.com, which uses KumoMTA as its email infrastructure. Their Engineering team...
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Cartoon strip of email team discussing methods.
Tuneable Architecture, Email Infrastructure, In-house vs Outsourced

The case for tuneable architecture

A month from now, I will be in Toronto discussing the benefits of having tunable control over your email sending. Join...
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MTA, On-Prem, KumoMTA, Lua, mailops, control

A better way to extract header data

An email is so much more than just the body that gets read by a recipient. The message headers that are not typically...
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Sun rising over Stonehenge
Release, Announcements, MTA, On-Prem, KumoMTA, General Availability, security, mailops, global

Announcing the 2026 KumoMTA Summer Solstice Release

For those KumoFans following along, we just dropped another stable release, but this one is pretty small by comparison....
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MailOps engineer writing KumoMTA config.
MTA, On-Prem, KumoMTA, Lua, mailops, control

Making OS functions more accessible to KumoMTA

The last several months have been hectic to say the least. Four stable releases, over a hundred new functions, and two...
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MTA, On-Prem, KumoMTA, security, mailops, global

El enchante Barcelone

Two weeks back from Deliverability Summit 2026, and the enchantment of Barcelona still lingers in our memories. If you...
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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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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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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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