[mdlug] Quotas. How do they work?

Mark Montague markmont at umich.edu
Tue Mar 29 11:20:19 EDT 2011


  On March 29, 2011 11:07 , "Robert Adkins II" <radkins at impelind.com> 
wrote:
> Two of the users in question receive hundreds of megabytes of data and also
> forward to other users inhouse and out that are also into the hundreds of
> megabytes.
>
> This can quickly become an unmanageable situation.

What size limit are you imposing on individual messages?  UofM imposes a 
limit of 100 MB for a single SMTP mesage, which, taking MIME encoding 
losses into account means that users can generally send a message with 
at largest a single 67 MB attachment.

Do you have duplicate delivery suppression enabled on your IMAP server?  
If people are forwarding large emails to other users in-house, duplicate 
delivery suppression can potentially save a lot of storage space.

Have you educated users about other ways to transfer large amounts of 
data?  For example, dropbox-like services?  SFTP to personal home 
directory space?  There are a variety of cloud-based and in-house 
options.  When educating users, be sure to emphasize the benefits of 
non-email-based methods -- including faster speeds (potentially), much 
better security, and more features.

--
   Mark Montague
   mark at catseye.org




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