Top 4 Open-Source Alternatives to Rackspace Email Hosting

Rackspace Email Hosting

Rackspace Email Hosting is a platform that provides business with web-hosted email services.

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Product categories

Email Email Clients Email Service Provider Enterprise Communication Hosted Email Open Source SMTP Server Self-hosted Email

Summary

The top open-source alternatives to Rackspace Email Hosting are Tutanota, iRedMail, and Mail-in-a-box. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Tutanota Landing Page
1

Tutanota

Get your encrypted mailbox for free.
Pricing:
- Open Source
#Email #Enterprise Communication #Email Clients 180 social mentions
iRedMail Landing Page
2

iRedMail

A fully fledged, free email server solution, an open source project (GPL v2).
Pricing:
- Open Source
#Email #Email Clients #SMTP Server 3 social mentions
Mail-in-a-box Landing Page
3

Mail-in-a-box

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.
Pricing:
- Open Source
#Email #Email Service Provider #Email Clients 122 social mentions
mailcow Landing Page
4

mailcow

An open source mailserver suite.
Pricing:
- Open Source
#Email #Open Source #Email Service Provider 87 social mentions