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 (618)
    DNS, Domain Registration, Email, Mailing lists (Mailman), SPAM and Virus Email Filter, Web Site

  Support Portal (1)

All Articles

Title Updated Views
Adding Mailbox to existing forwarding address 4 days ago  37
Create a new email address in Plesk Panel 4 days ago  3247
Fighting Spam Calendar Invitations 13 days ago  103
Create a mailbox out of a forwarding address 1 month ago  204
Zimbra 2FA: Moving 2FA Auth codes to a new device authentication app 2 months ago  5943
Zimbra 2FA: Step 1: Secure HIS Zimbra Webmail login 2 months ago  3559
Setting Up Zimbra 10 Desktop App 2 months ago  242
Zimbra 10 new document editing in Briefcase 2 months ago  423
Zimbra 10 ZCO supported Windows and Outlook versions 2 months ago  456
ZCO: Why am I getting Local Failure Notices? 2 months ago  489
ZCO: Fix Persistent Local Failure Notices Outlook Stuck Syncing 2 months ago  440
Zimbra Connector for Outlook (ZCO): Uninstall/Reinstall Process 2 months ago  493
October 2025: Transition to Zimbra 10 2 months ago  2120
Creating a Persona in Zimbra webmail 2 months ago  559
Stop Zimbra from automatically adding calendar invites into calendar 2 months ago  481
Zimbra 10 Connector for Outlook (ZCO) Installation steps 2 months ago  639
Zimbra 8 Pro: Setting up Microsoft Outlook (Windows) with Zimbra 8 Connector for Outlook Synchronization (ZCO) 2 months ago  10336
Thunderbird IMAP: Shorten Sync Time 3 months ago  1858
What's new in store with Zimbra 10? 3 months ago  517
Zimbra Webmail versions User's guides 3 months ago  641
(Showing 1-20 of 400) 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