What is the licensing model for KumoMTA, and what does it allow users to do?

KumoMTA uses the Apache Software License 2.0, which permits broad freedoms in its usage. This includes running the software for any purpose, examining its internals, adapting it to specific needs, and sharing both the original and customized forms with others. Such terms ensure accessibility while protecting contributors' rights.

When was KumoMTA first developed, and what are its core classifications?

KumoMTA came into existence in 2023, marking its entry as a modern tool in messaging infrastructure. It falls under the category of free software, emphasizing open distribution and modification rights, and specifically serves as a message transfer agent for efficient message routing. These attributes position it within a ecosystem of collaborative, non-proprietary tools.

Where can I find KumoMTA's source code and online resources?

The complete source code resides on GitHub at https://github.com/KumoCorp/kumomta, maintained by the organization KumoCorp and linked to Lua-based development practices. For general information and downloads, visit the official site https://kumomta.com/, and follow updates via Twitter at @KumoMta. Its logo and additional media are hosted on Wikimedia Commons.

How does KumoMTA fit into alternative software directories, and what is its Wikidata profile?

In directories like AlternativeTo, KumoMTA is listed under the ID kumomta, highlighting it as a viable open-source option for message handling. On Wikidata, it is described simply as an open-source message transfer agent, with references tying back to Wikipedia for verification as of July 2023. This setup aids in discoverability across knowledge bases.

KumoMTA

open-source message transfer agent

CreativeWork free_software Q120910179

Facts

10 properties

Instance of: free software, message transfer agent^[2]
Inception: 2023^[5]
Official website: kumomta.com^[6]
License: Apache Software License 2.0
Website: kumomta.com
Programming language: Rust
Copyright license: Apache Software License 2.0^[3]
Github username: KumoCorp
Programmed in: Rust^[4]
Twitter: KumoMta

🏷️ Also known as

en KumoMTA

🔖 Identifiers · 4

AlternativeTo software ID: kumomta
GitHub account: KumoCorp
Source code repository URL: github.com
X (Twitter) username: KumoMta

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Instance of 2

free software, message transfer agent

Apache Software License 2.0

Programmed in 1

Rust

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Summary

KumoMTA is a free software^[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ KumoMTA — instance of (P31): message transfer agent. Retrieved 2023-07-26. wikidata.org.
[3] ↑ KumoMTA — copyright license (P275): Apache Software License 2.0. api.github.com. Retrieved 2023-07-26. api.github.com. Provenance: wikidata.org.
[4] ↑ KumoMTA — programmed in (P277): Rust. Retrieved 2023-07-26. wikidata.org.
[5] ↑ KumoMTA — inception (P571): 2023. Retrieved 2023-07-26. wikidata.org.
[6] ↑ KumoMTA — official website (P856): https://kumomta.com/. wikidata.org.

Class ancestry

[1] ↑ KumoMTA is an instance of free software (Q341) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). KumoMTA. Retrieved May 3, 2026, from https://4ort.xyz/entity/kumomta

MLA “KumoMTA.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/kumomta.

BibTeX

@misc{4ortxyz_kumomta_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{KumoMTA}}, year = {2026}, url = {https://4ort.xyz/entity/kumomta}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): KumoMTA — https://4ort.xyz/entity/kumomta (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/kumomta · Last refreshed: May 3, 2026