We are using a UAG 2010 SP1 to provide Exchange Active Sync for both Exchange 2010 and Exchange 2003. It seems that especially with our IPADs some users are having problems downloading fairly large file attachments. I'd say in the neighborhood 15-20 MB. My question what is the maximum file size download limitation for Exchange Active Sync on Exchange 2003? And Exchange 2010?

See this for 2010: http://social.technet.microsoft.com/Forums/en-AU/exchange2010/thread/c6ddc56e-da96-4ea2-98c5-4ff9223dac5b 2003? Hmm not sure where that is stored. Dont forget you can set attachment sizes on the activesync policies as well.

Hi, Regarding to http://technet.microsoft.com/en-us/library/bb123484.aspx I think there's no limitation on download attachment in Exchange 2010 as well as Exchange 2003. Hope it helps.Best Regards!

There is a download limit set on active sync policies for Exchange 2010 . EMC\ORG\Client access\active-sync policies...

I see so the default is unchecked for maximum attachment size when looking at the properties in EMC\ORG\Client Access\active-sync policies.