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 Self-Hosted, Web-based, Linux, PHP and Cloudron apps. The best Postaci alternative is Roundcube, which is both free and Open Source. Other great apps like Postaci are Mailpile, Kolab, Rainloop and Zimbra Collaboration 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.
Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.
Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.
NeoMail is a web-based mail client that allows users to access their mail spools and send messages. It does not require a POP3 server, or any shell access for the users. It interfaces directly with user mail spools.
TrulyMail is an email client and a private messaging system, very feature rich (voice recording, script blocking, etc.).
MrMail offers flexible Zimbra Hosting packages suitable for everyone, from single home user to a large company (SME) at superb prices and the best support in the industry.
WordSecure is a secure messaging portal, specifically designed for solo health insurance professionals. It lets you quickly and easy share the most confidential PHI messages and files in an encrypted manner to demonstrate best practices for HIPAA.
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