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ISC Networking & Telecommunications Email Services - Zimbra

Service Features

  • Integrated Email, Calendaring, Tasks, and Contacts with the following clients:
    • Windows: Outlook 2007, Outlook 2010 (Zimbra Connector for Outlook required)
    • Mac OS X: Zimbra Web Client, Advanced Edition at
    • Handhelds: Windows Mobile 5.0/6.0, Windows Phone 7, Palm + ActiveSync (for calendar/contacts), Apple iPhone via ActiveSync or iZimbra web interface.
  • Email using any supported IMAP or POP client (see the Supported Products page for the current list of Email clients).
  • addressing, in addition to and the option of other hosted domains.
  • Virus scanning and spam filtering of all email.
  • Mobile Access from supported handheld devices.
  • Unified Messaging for PennNet Phone subscribers.
  • 1 GB disk quota for all, email, calendaring, tasks, and contacts items.
  • Additional disk quota for a fee (see Rates page), up to 4 GB max quota.
  • Please note that the size of any individual mail message that is sent or received cannot be greater than 30MB.
  • File restorations
  • Account Management for Local Support Providers (LSPs) to create, modify and view accounts they manage.
  • Account Management for users.
  • Account self-provisioning for student

Service Alerts

Update: 10/5/2015, 12:15pm - Things have stablized for the Zimbra service including ZWC. We suspect that there were network problems for one group of users that resulted in looping of bad requests to connect that started eating up resources for everyone. We are still investigating.

10/5/2015, 11:30am - We are seeing intermittent problems connecting to the Zimbra Webmail Client. Some users have been able to connect using ZWC after multiple attempts and we are hearing that users are not experiencing problems using an SMTP client like Thunderbird. We are looking for the root cause of this degradation in service and will send updates as we have them.


Information Systems and Computing
University of Pennsylvania
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Information Systems and Computing, University of Pennsylvania