Under Transport Settings, enter values in the Maximum receive. For example, if you specify a maximum message size value of 64 MB, you can expect a realistic maximum message size of approximately 48 MB.ġ0.Open elevated command prompt, run below command. In the Hub Transport settings, click the Global Settings tab. Base64 encoding increases the size of the message by approximately 33%, so the value you specify should be approximately 33% larger than the actual message size you want enforced. This accounts for the Base64 encoding of attachments and other binary data.
In my case, I changed the Value from 10240 to 51200.ĥ.On the Server Manager console select Tools and click Internet Information Services (IIS) Manager.Ħ.On the IIS Default Web Site Page, select Microsoft-Server-ActiveSync.ħ.On the Feature View page, double-click Configuration Editor in the Management section.Ĩ.On the Configuration Editor page, click the drop down arrow in the Section field, expand system.webServer, expend security, select requestFiltering.ĩ.On the requestFiltering page, expend requestLimits, modify the maxAllowedContentLength value the deafult 30000000 (bypes), in my case, I changed it from 3000000 to 67108864, click Apply.įor any message size limit, you need to set a value that’s larger than the actual size you want enforced. (exchange power shell console) flag Report. Then change the limit size by running: Set-TransportRule transport rule name AttachmentSizeOver 20M. In my case, I changed the Value from 10240000 to 5120000.Ĥ.Open web.config file,modify maxRequestLength value, the default is 10240. Firstly, let’s check the attachment limit size by running: Get-TransportRule fl name,AttachmentSizeOver.
Set exchange 2016 attachment size limit how to#
My customer call me and said he cannot open email attachment that larger than 7MB on cell phone, today, I am going to show you how to fix this issue.Ģ.Open file explorer, type %ExchangeInstallPath%ClientAccess\Sync\, press Enter.ģ.Open web.config file, modify MaxDocumentDataSize value, the default is 10240000.
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