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System Requirements v12.5.8

Release Notes iMail Server

System Requirements

• Operating Systems supported:
  • Microsoft® Windows Server 2012 R2
  • Microsoft® Windows Server 2016
• Available space requirements: Minimum 5 GB.
• Browsers supported:
  • Firefox 7 or later (for Microsoft Windows and Macintosh)
  • Google Chrome
  • Safari 5 browser and later
  • Internet Explorer 8 and later

    Note: Internet Explorer 7 is no longer supported. For all users still running XP, be sure that all client browsers have been upgraded to IE8 with Compatibility Mode disabled.

• Microsoft Internet Information Services (IIS) 8.5 and later
• Microsoft Data Access Component (MDAC) 2.8 SP1 or later
• Microsoft® .NET Framework 3.5 Service Pack 1
• Microsoft® .NET Framework 4.0

Client Apps (IMail Collaboration and IM Client Installer)

• Microsoft® .NET Framework 4.0
• Windows Install 4.5 Redistributable - http://www.microsoft.com/en-us/download/details.aspx?id=8483

Required Hardware

• TCP/IP enabled network interface card (NIC) with a static IP address
• Disk space is dependent on the number of users and usage.

Minimum Requirement

Recommended Minimum by Users

• Light use is defined by the system primarily supporting POP3 users with less than 10% of users accessing mailboxes via web mail and/or mobile devices concurrently.
• Moderate use is defined as a mix of IMAP and POP3 users accessing the system with an average mailbox size less than 200 MB and less than 40% using web and/or mobile devices concurrently.
• Heavy use is defined as a mix of IMAP and POP3 users accessing the system with an average mailbox size exceeding 200 MB and more than 40% of users using web and or mobile devices concurrently.

System Guidelines for Mobile Synchronization Usage

These are general guidelines and are an approximation based on in-house performance testing. There is no guarantee that the recommendations stated below will exactly match each particular clients needs. These estimates are based on moderate mobile synchronization usage. Initial mobile synchronization and complete resynchronization of data tend to have very high cpu usage, depending on the amount of data being synchronized.

System performance will seriously be degraded should a large number of initial synchronizations happen simultaneously.

It may be necessary to run the IMailSync application pool with multiple processes should there be a large number of mobile users.

Warning: IMailSync, IAdmin, and IClient should never be run in the same application pool. Also, both IClient and IAdmin do not support multiple processes.