Top 12 Open-Source Alternatives to InstAddr

Product categories

Calendar Disposable Email Email Email Clients Email Management Email Productivity Email Service Provider Enterprise Communication Fake Email Hosted Email SMTP Server Self-hosted Email

Summary

The top open-source alternatives to InstAddr are Mailpile, Cypht, and Rainloop. 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 #Email Clients #Email Management
Cypht Landing Page
2

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 #Email Clients #Email Management 4 social mentions
Rainloop Landing Page
3

Rainloop

RainLoop is a web based email client.
Pricing:
- Open Source
#Email #Email Clients #Email Management
Tutanota Landing Page
4

Tutanota

Get your encrypted mailbox for free.
Pricing:
- Open Source
#Email #Email Clients #Enterprise Communication 177 social mentions
Roundcube Landing Page
5

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #SMTP Server #Email Clients 16 social mentions
Guerrilla Mail Landing Page
6

Guerrilla Mail

Guerrilla Mail is a web-based app that provides a disposable and anonymous email address. Users of the service are not required to set up an account in order to send or receive emails.
Pricing:
- Open Source
#Disposable Email #Fake Email #Email Productivity 5 social mentions
Firefox Relay Landing Page
7

Firefox Relay

Keep your email safe from hackers & trackers...
Pricing:
- Open Source
#Email #Fake Email #Disposable Email 83 social mentions
SOGo Landing Page
8

SOGo

SOGo is groupware server with a focus on scalability and open standards.
Pricing:
- Open Source
#Email #Email Clients #Self-hosted Email 1 social mentions
mailcow Landing Page
9

mailcow

An open source mailserver suite.
Pricing:
- Open Source
#Email #Self-hosted Email #Email Service Provider 82 social mentions
Squirrelmail Landing Page
10

Squirrelmail

SquirrelMail is a standards-based webmail package written in PHP.
Pricing:
- Open Source
#Self-hosted Email #Enterprise Communication #Email 3 social mentions
iRedMail Landing Page
11

iRedMail

A fully fledged, free email server solution, an open source project (GPL v2).
Pricing:
- Open Source
#Email #SMTP Server #Self-hosted Email 2 social mentions
SimpleLogin Landing Page
12

SimpleLogin

Receive and send emails anonymously. Create a unique email address for each website to avoid cross-site tracking and protect your inbox from spam, phishing and data breaches.
Pricing:
- Open Source
- Freemium
- Free Trial
- $2.99 / Monthly (Premium)
#Security & Privacy #Fake Email #Email 271 social mentions