Compare RainLoop and Zimbra Collaboration 
RainLoop vs Zimbra Collaboration
- Reviewers felt that RainLoop meets the needs of their business better than Zimbra Collaboration.
- When comparing quality of ongoing product support, reviewers felt that Zimbra Collaboration is the preferred option.
- For feature updates and roadmaps, our reviewers preferred the direction of RainLoop over Zimbra Collaboration.
I used to use Thunderbird Portable for my email. It was nice, but not every computer I interacted with allowed me to load even a portable app. Additionally, some companies block services like gmail. Having a self-hosted web-based email client is a godsend....
It does not have any pre-established cloud storage tools like other emails, among other useful applications when sharing files, it does not have a Smartphone application form, although it is compatible from any browser with the mobile version option, you...
Besides of e-mail feature, there are a lot of more useful features like calendars and task list. Also provides connectivity through IMAP/POP, CalDAV and CarDAV to external clients. Possibility to use and develop plugins (Zimlets) and multi language support...
The backup system is not flexible. It is very difficult recover only one specific email. Basically need to do a rollback of many messages to find one specific. The email system is very dependent of database server. If there is need of HA solution, it will...
I used to use Thunderbird Portable for my email. It was nice, but not every computer I interacted with allowed me to load even a portable app. Additionally, some companies block services like gmail. Having a self-hosted web-based email client is a godsend....
Besides of e-mail feature, there are a lot of more useful features like calendars and task list. Also provides connectivity through IMAP/POP, CalDAV and CarDAV to external clients. Possibility to use and develop plugins (Zimlets) and multi language support...
It does not have any pre-established cloud storage tools like other emails, among other useful applications when sharing files, it does not have a Smartphone application form, although it is compatible from any browser with the mobile version option, you...
The backup system is not flexible. It is very difficult recover only one specific email. Basically need to do a rollback of many messages to find one specific. The email system is very dependent of database server. If there is need of HA solution, it will...
