---
type: entity
title: K-9 Mail
tags: [email-client, android, open-source]
related: [android, central-email-service]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_e_mail_e_mail_einrichten_android.md"]
---

# K-9 Mail

**K-9 Mail** is an email client for the [[android]] operating system. It is used by the **Universitätsrechenzentrum (URZ)** as the primary example for demonstrating how to manually configure university email accounts on mobile devices.

The client supports manual configuration of [[imap]] and [[smtp]] protocols, allowing users to specify security types such as [[starttls]], which is required for the Universität Greifswald email infrastructure.
