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Postaci Alternatives

Postaci is described as '(Turkish for Postman) is multiplatform Webmail software which is database independent, multilanguage, POP3/IMAP, and fully MIME-compatible. While using POP3 mode to fetch messages it uses database fields to simulate IMAP folders, on which you can save, move, delete, and' and is a webmail provider in the online services category. There are more than 10 alternatives to Postaci for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Linux, PHP and Cloudron. The best alternative is Roundcube, which is both free and Open Source. Other great apps like Postaci are Rainloop, Mailpile, Zimbra Collaboration Suite and Kolab Community.

Postaci alternatives are mainly WebMail Providers but may also be Email Clients or Mail Servers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Postaci.
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Postaci (Turkish for Postman) is multiplatform Webmail software which is database independent, multilanguage, POP3/IMAP,...

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  1. Roundcube icon

    Roundcube

    • Self-Hosted
    • PHP
    • Cloudron
    29 alternatives to Roundcube 

    Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.

     Suggest and vote on features
    Features
    1.  PGP EncryptionRoundcube supports PGP, an encryption system used for sending encrypted emails and files.
    Screenshot
    Mailbox
  2. Rainloop icon

    Rainloop

    • Online
    • Self-Hosted
    • Nextcloud
    • JavaScript
    • PHP
    • Cloudron
    12 alternatives to Rainloop 

    Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make RainLoop Webmail a perfect choice for your email solution.

     Suggest and vote on features
    Features
    Login


  3. Mailpile icon

    Mailpile

    • Linux
    • Online
    • Self-Hosted
    • OpenPGP
    58 alternatives to Mailpile 

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.

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    Features
    1.  OpenPGPMailpile supports OpenPGP, a standard of PGP encryption that is open-source for public use.
    Discontinued

    1.0.0 Release Candidate 6 from 2019 is the last version on GitHub (https://github.com/mailpile/Mailpile/releases). Possibly the development has been stopped.

    Screenshot
    Screenshot
  4. Zimbra Collaboration Suite icon

    Zimbra Collaboration Suite

    • Linux
    • Online
    • Self-Hosted
    42 alternatives to Zimbra Collaboration Suite 

    Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.

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    Features
    1.  Real time collaborationMultiple users can work together in Zimbra Collaboration Suite simultaneously.
    Screenshot
  5. Kolab Community icon

    Kolab Community

    • FreemiumOpen Source
    • Linux
    • Online
    • Self-Hosted
    41 alternatives to Kolab Community 

    Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.

     Suggest and vote on features
    Features
    1.  Real time collaborationMultiple users can work together in Kolab Community simultaneously.


  6. Horde icon

    Horde

    • Online
    • Self-Hosted
    40 alternatives to Horde 

    Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.

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    Features
    Discontinued

    The last release (5.2.22) was in September 2017.

    Screenshot
  7. OX App Suite icon

    OX App Suite

    • Linux
    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    20 alternatives to OX App Suite 

    The OX App Suite by Open-Xchange is web-based platform offering a suite of apps like an email client, calendar, contacts magement, cloud storage with synchronization and productivity apps for word processing, spreadsheets and presentations.

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    Features
    1.  Real time collaborationMultiple users can work together in OX App Suite simultaneously.
    2.  Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
    3.  Calendar IntegrationOX App Suite lets you sync your tasks and events with your calendar application.
    OX Portal
    OX Mail
  8. Squirrelmail icon

    Squirrelmail

    • Self-Hosted
    • PHP
    17 alternatives to Squirrelmail 

    SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers.

     Suggest and vote on features
    Features
    Screenshot
  9. SnappyMail icon

    SnappyMail

    • Self-Hosted
    • Web Browser
    12 alternatives to SnappyMail 

    The drastically upgraded & secured fork of RainLoop Webmail Community edition.

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    Features
    1.  LightweightSnappyMail consumes less device resources compared to similar apps.
    2.  Ad-freeSnappyMail doesn't contain any form of external advertising.
    Screenshot
  10. Webmail Lite icon

    Webmail Lite

    • Online
    • Self-Hosted
    28 alternatives to Webmail Lite 

    Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail application, which is fast and easy to use. Whether you need a free web browser based email client software for Windows ASP.

     Webmail Lite has no features, suggest some!
    Afterlogic Webmail Lite
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