Hi everyone,

I have developed an application that read emails from exchange server. Currently Im using exchange WebDAV and check each mailbox one by one to read emails.

Now question is, if I want to read emails from multiple mailboxes in single call without going each mailbox one by one, how it is possible using exchange WebDAV, if no then which method is best for it?

Thanks

Hi,

According to my technology and research, WebDAV can implement batch request. For your reference:
https://msdn.microsoft.com/en-us/library/ms877286%28v=exchg.65%29.aspx?f=255&MSPPError=-2147217396
However, Exchange 2013 doesnt support WebDAV connections. More details about What's discontinued in Exchange 2013:
https://technet.microsoft.com/en-us/library/jj619283%28v=exchg.150%29.aspx

For your question, we may can do this by using EWS.
Additional, this question may be related to Exchange development. Please contact relevant team so that you can get more professional suggestion, for your convenience:
https://social.technet.microsoft.com/Forums/office/en-US/home?forum=exchangesvrdevelopment

Thanks

I hope, the above suggestion and references would be helpful to understand your concern in depth.

However, if you wish to get this report automatically, you may consider on this automated solution (http://www.exchangereports.net/) that provides complete list of all read/unread mails per mailbox in one go even at granular level.

how can i get unread emails from multiple mailboxes in EWS API and exchange server 2013