Email Servers

Open‑source software for hosting, managing, and providing email protocols (IMAP, SMTP) along with integrated contacts and calendar (groupware) functionality.

by The Linux Foundation

・

8 projects ・ Updated 14 Mar 2025

Only Linux Foundation projects

Project

Contributors

Organizations

Software value

mailcow: dockerized

4,629

944

$12M

Docker Mailserver

2,380

586

$502K

Mailu

2,073

517

$632K

Mail-in-a-Box

1,874

452

$467K

Haraka

950

229

$621K

Cyrus IMAP

548

119

$15M

Zimbra

494

$36M

Exim

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