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For IT Managers in mid-sized businesses.

Question for you - Average size of each Exchange Mailbox?

Question for you - Average size of each Exchange Mailbox?

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Midmarket companies who are using Exchange, I have a question for you:  How big is the average mailbox in your organization?  How big would you like it to be (within reason)?  What do you do when an Executive at your company reaches their mailbox limit? 
  •  Mailbox sizes range from 1.2MB (users who delete everything) to 1.5GB (users who don't delete anything).

     I'd say the average is about 250MB. I have the limits set to warn at 950MB and prohibit send at 1GB. I do not prohibit receive.

     For managers I warn at 1.5GB but do not prohibit anything.

     If I had my way, I'd give everyone 2GB but I don't have enough time or bandwidth for backups of that size.

     If a manager reaches a limit, I help them to clean things up. This happens every few months and mostly it involves showing them how to empty their trash.

  • Thanks Brian!  This is very helpful.

  • Warning at 600GB

    Deny send at 750GB

    No if and or buts.


  • No restrictions as of right now (we are implementing them) we are at 72GB store with 220 users. So average is around 320MB.

  • We set quotes at 100MB for regular users 200 MB for managers, 500MB for Director level employees and 2GB for our Executives. For the most part it seems to work fine. The main problems come from a couple Executives who want to store all the funny video clips they get from their friends to the point that 2GB isn't even enough for them....

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