Rainloop Alternatives [Page 5]

Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...

Open Source

The Cyrus IMAP server differs from other IMAP server implementations in that it is generally...

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.

Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.

freemium

SmarterMail is a next generation email management server that is offering several business collaboration and communication features as well.

BlueMail is an email management app for Android, iOS, and Windows.

Email how it is supposed to be: ✔ Free, simple and secure ✔ Manage multiple mail accounts in one place, from any device ✔ Sign up today!

Open-Xchange Server 6 is the most advanced Linux based Groupware solution f.

DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...

Open Source

The Power Email App for busy professionals, like you.

MailEnable is a Windows based mail server and email server program that is packed with the state of the features and functions like antivirus and spam filtering system, webmail management system, cardDAV, CalDAV and much more.

The Calendar app is a user interface for Nextcloud's CalDAV server.

Open Source

Vocus.io is a productivity tool for Gmail available as a Chrome extension.