Please do a full backup or snapshot before upgrading. You can download the software, the md5, and the SHA 256 files here:
- Network Edition - https://www.zimbra.com/downloads/zimbra-collaboration/
- Open Source Edition - https://www.zimbra.com/downloads/zimbra ... en-source/
- Zimbra Connector for Outlook - https://www.zimbra.com/downloads/zimbra ... r-outlook/
Note: Related to the Mailsploit fix, we recommend that all sites upgrading to 8.8.7 manually set zimbraPrefShortEmailAddress to FALSE, which is the default for new 8.8.7 installs.
Please, read the Full Release Notes here: https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7
See the announcement here: https://blog.zimbra.com/2018/03/zimbra- ... -30-fixes/
All Zimbra Collaboration 8.8 sites are recommended to upgrade to this version.