Top 4 Open-Source Alternatives to Authority

Authority

Authority is a straightforward and affordable email migration solution that allows you to move from your current email platform to new platform without using Authority as you archive.

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Product categories

Calendar Disposable Email Email Email Archiving Email Clients Email Management Email Security Email Software Enterprise Communication SMTP Server Self-hosted Email Website Builder

Summary

The top open-source alternatives to Authority are Thexyz, ArcTitan, and Squirrelmail. 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.

Thexyz Landing Page
1

Thexyz

Secure premium email service with mobile sync apps for calendar, contacts, tasks, notes and FISMA compliant email archiving.
Pricing:
- Open Source
- Paid
- $2.95 / Monthly (25GB)
#Email #Email Security #Email Archiving 1 social mentions
ArcTitan Landing Page
2

ArcTitan

ArcTitan email archiving provides businesses with instant data encryption. Compliant fast, powerful, affordable and Office365 enabled. ArcTitan saves, indexes emails and enables you to search all the internal and external emails.
Pricing:
- Open Source
- $2.92 / Monthly (Per User)
#Email Archiving #Email Software #Email Security
Squirrelmail Landing Page
3

Squirrelmail

SquirrelMail is a standards-based webmail package written in PHP.
Pricing:
- Open Source
#Self-hosted Email #Enterprise Communication #Email 3 social mentions
Roundcube Landing Page
4

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #Email Clients #SMTP Server 16 social mentions