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Become a sponsor to Marcel Pfingstgräf

@mcpdev80

Marcel Pfingstgräf

mcpdev80
Germany

I build and maintain MailFlow, an independent, privacy-focused open-source AI email project.

MailFlow is designed for people who want more control over their email workflows, with a strong focus on self-hosting, local and hosted LLM support, multi-user environments, security, automation, and practical day-to-day usability.

I develop MailFlow independently in my spare time. Sponsorship helps support continued development, testing, CI infrastructure, compatibility work across different LLMs and providers, security improvements, documentation, localization, and the infrastructure needed to keep the project moving forward.

MailFlow remains open source under the AGPL-3.0 license regardless of sponsorship.

Sponsorship is voluntary support for the project. It does not create a support contract, SLA, guaranteed feature delivery, priority bug fixing, proprietary licensing rights, or ownership in the project.

If MailFlow saves you time, helps your workflow, or your organization benefits from it, your support helps make continued independent development possible.

Thank you for supporting independent open-source software.

Featured work

  1. mcpdev80/MAILFLOW-AI_MAILING

    Open source AI email assistant — Use any LLM, self-hostable, AGPL

    Python

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Select a tier

$ a month

You'll receive any rewards listed in the $10 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

$5 a month

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Support the continued independent development and maintenance of MailFlow.

Includes the standard GitHub Sponsor badge. No support contract, SLA, feature guarantee, roadmap priority, or other service is included.

$10 a month

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Help support the continued development of MailFlow, including testing, documentation, security improvements, localization, and compatibility work across local and hosted LLMs.

Optional public recognition as a project supporter.

No support contract, SLA, feature guarantee, roadmap priority, consulting, or other service is included.

$25 a month

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Provide significant ongoing support for the independent development of MailFlow.

Your sponsorship helps fund development time, testing infrastructure, security work, documentation, localization, and compatibility testing.

Optional prominent recognition as a project supporter.

No support contract, SLA, feature guarantee, roadmap priority, consulting, or other service is included.