Knowledge Base

We are not offering 24/7 telephone support at this time, please open a Support Ticket

  • knowledgebase
  • announcements
Search

Most Popular
Recently Added
Recently Updated
Topics
  Billing (8)

  Support (614)
    DNS, Domain Registration, Email, Mailing lists (Mailman), SPAM and Virus Email Filter, Web Site

  Support Portal (1)

All Articles

Title Updated Views
Zimbra 2FA: Moving 2FA Auth codes to a new device authentication app 3 days ago  5455
Zimbra 2FA: Step 1: Secure HIS Zimbra Webmail login 3 days ago  3178
Setting Up Zimbra 10 Desktop App 4 days ago  31
Zimbra 10 new document editing in Briefcase 17 days ago  155
Zimbra 10 ZCO supported Windows and Outlook versions 26 days ago  154
ZCO: Why am I getting Local Failure Notices? 26 days ago  182
ZCO: Fix Persistent Local Failure Notices Outlook Stuck Syncing 26 days ago  154
Zimbra Connector for Outlook (ZCO): Uninstall/Reinstall Process 26 days ago  171
October 2025: Transition to Zimbra 10 29 days ago  1429
Creating a Persona in Zimbra webmail 29 days ago  207
Stop Zimbra from automatically adding calendar invites into calendar 1 month ago  182
Zimbra 10 Connector for Outlook (ZCO) Installation steps 1 month ago  248
Zimbra 8 Pro: Setting up Microsoft Outlook (Windows) with Zimbra 8 Connector for Outlook Synchronization (ZCO) 1 month ago  9691
Thunderbird IMAP: Shorten Sync Time 1 month ago  1130
What's new in store with Zimbra 10? 1 month ago  277
Zimbra Webmail versions User's guides 2 months ago  402
Zimbra 10 User’s guide for Modern Web App 2 months ago  664
Warning: Possible inconvenience and account lock-out ahead! 2 months ago  436
Set up 2FA by email 2 months ago  377
Zimbra 2FA: Step 2: Generating application code for other devices / EMail Apps 2 months ago  8158
(Showing 1-20 of 397) Next> >>

For news and system status updates, check: status.his.com

Check our Knowledge Base for How-To tips and answers to common questions.

We are not offering 24/7 telephone support at this time, please open a Support Ticket