How to Retrieve Attachments Larger Than 5MB Using EWS

Question

I'm working with Exchange Web Services (EWS) and need assistance on how to retrieve attachments that are larger than 5MB. By default, EWS seems to limit the attachment size for retrieval, but I need to ensure that larger attachments can be fetched. Could anyone share how to handle this scenario and any configuration that might be required on the server side to support large attachments? If possible, can you provide a sample code snippet for this?

Answer 1

Hi, @WongYK

To retrieve attachments larger than 5MB using Exchange Web Services (EWS), you first need to make sure that your Exchange server is configured to support larger attachments. This may involve updating certain settings on the server side, but this is usually handled by the Exchange administrator. The configuration settings include parameters such as 'MaxSendSize', 'MaxReceiveSize' and 'MaxAttachmentSize'.

Unfortunately, the “Exchange Server Management” tag currently focuses only on mail and mail flow, not code.

You can refer to exchange server - How to download >1 MB Email attachment using EWS in C# - Stack Overflow

Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. 

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