Zimbra.

Facts

Headquarters

US (US)

Category

Business Email & Groupware

Type

Product

GDPR-compliant

Yes

Open-source

Yes

Data hosting

EU

EU alternatives

• EGroupware

  German open-source groupware platform with email, CRM, project management and more

  DE · open-source

  ↗
• Kolab

  Swiss open-source groupware platform with email, calendar and file management

  CH · open-source

  ↗
• Kopano

  Dutch open-source groupware platform with email, calendar and video conferencing

  NL · open-source

  ↗
• Mailcow

  German open-source email server platform with Docker-based installation

  DE · open-source

  ↗
• Mailu

  Open-source email server in Docker with webmail, anti-spam and antivirus protection

  FR · open-source

  ↗
• Open-Xchange

  German open-source email and groupware platform for providers and companies

  DE · open-source

  ↗
• Roundcube

  open-source webmail-client with modern interface and plugin-architecture

  CH · open-source

  ↗
• grommunio

  Austrian open-source groupware platform as an alternative to Microsoft Exchange

  AT · open-source

  ↗

Also in this category

• AxigenRO
• iRedMailCN
• SOGoCA
• Stalwart MailGB