Top 12 Open-Source Alternatives to Rainloop

Rainloop

RainLoop is a web based email client.

As Rainloop is an open source project, you can find more open source alternatives and stats on LibHunt.

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Pricing:

Open Source

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Product categories

Email Email Clients Enterprise Communication Calendar Email Service Provider Self-hosted Email Email Management Network & Admin Disposable Email Disposable Sms Email Testing End To End Testing

Summary

The top open-source alternatives to Rainloop are Mailpile, Roundcube, and Cypht. 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.

Mailpile Landing Page
1

Mailpile

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
Pricing:
- Open Source
#Email #Enterprise Communication #Email Clients
Roundcube Landing Page
2

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #Calendar #Enterprise Communication 17 social mentions
Cypht Landing Page
3

Cypht

All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.
Pricing:
- Open Source
#Email #Enterprise Communication #Email Clients 4 social mentions
SOGo Landing Page
4

SOGo

SOGo is groupware server with a focus on scalability and open standards.
Pricing:
- Open Source
#Email #Enterprise Communication #Email Clients 1 social mentions
Squirrelmail Landing Page
5

Squirrelmail

SquirrelMail is a standards-based webmail package written in PHP.
Pricing:
- Open Source
#Email #Calendar #Enterprise Communication 4 social mentions
Mail-in-a-box Landing Page
6

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 129 social mentions
iRedMail Landing Page
7

iRedMail

A fully fledged, free email server solution, an open source project (GPL v2).
Pricing:
- Open Source
#Email #Calendar #Email Service Provider 3 social mentions
Mailspring Landing Page
8

Mailspring

Mailspring is a mail client for Mac, Windows and Linux.
Pricing:
- Open Source
#Email #Calendar #Enterprise Communication 25 social mentions
mailcow Landing Page
9

mailcow

An open source mailserver suite.
Pricing:
- Open Source
#Email #Open Source #Email Service Provider 88 social mentions
Tutanota Landing Page
10

Tutanota

Get your encrypted mailbox for free.
Pricing:
- Open Source
#Email #Enterprise Communication #Email Clients 182 social mentions
Radicale Landing Page
11

Radicale

The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
Pricing:
- Open Source
#Email #File Sharing #Email Clients 17 social mentions
mailslurp Landing Page
12

mailslurp

Email and SMS testing and development platform for software engineers and QA testers
Pricing:
- Open Source
- Freemium
- Free Trial
#Email #Email Testing #Disposable Email