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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

Exchange, Forward-Only, and Zimbra Service Alert

1/17/2015, 12:15pm Update: To fix the delivery problem we backed out to our previous mail routing configuration. Because our message sanitation vendor was doing its own scheduled maintenance a piece of our configuration that is usually dormant was exercised and proved to be problematic. All corrections have been made and the service is stable for all.

1/17/2015, 11:43am Update: We were able to contact our vendor and the backlog of mail is now flowing. We're still waiting to hear full details of the situation and will report here when we can.

1/17/2015, 10:36am Update: We seem to have a second problem in play now. All mail coming in through our message sanitation vendor is showing up to 60 minute delays in delivery. Our vendor is doing some scheduled maintenance adn that may be the cause of the current state. We are trying to contact them.

1/17/2015, 10:00am Update: We made some changes but there are still problems and they seem to be with contacting our message sanitation vendor. We are continuing our investigation.

1/17/2015, 9:00am Update: The problem with sending to the email domain seems to be an intermittent one. So while testing last night seemed successful, we are still having problems and are again working on the issue.

January 16, 2015 - 4:10pm: There have been reports of issues sending to the email domain. Please contact with any further questions

Zimbra Service Alert

On January 20th between 5:00am and 7:00am there will be an upgrade to the SMTP outbound Mail Routing infrastructure hardware that the Zimbra service relies on. This upgrade will be transparent to the Zimbra community, and no changes will need to be done for any Zimbra clients. Please let us know if you have any questions.


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