exchangewebservices - How could I fetch multiple o365 mail details for mail ids using EWS managed API in c# -

i need fetch multiple o365 mail details different mail ids using ews managed api in c#. suppose have o365 mail ids 1,2,3...

when pass these mail ids , call ews managed api details mail ids should populated. have done details population single email id using code below:

 exchangeservice service = new exchangeservice(exchangeversion.exchange2013_sp1);             service.credentials = new webcredentials("username", "password");             service.autodiscoverurl(ownerusername, redirectionurlvalidationcallback);             emailmessage mail = emailmessage.bind(service, mailid, propertyset.firstclassproperties); 

if has suggestion please share.

try this:

exchangeservice service = new exchangeservice(exchangeversion.exchange2013_sp1); service.credentials = new webcredentials("username", "password"); service.autodiscoverurl(ownerusername, redirectionurlvalidationcallback);  //make sure include properties looking in emailmessageschema propertyset propset = new propertyset(basepropertyset.idonly, emailmessageschema.subject, emailmessageschema.torecipients);  //add ids stored in database here var itemids = new list<itemid>(); foreach(var mailids in db.mails.select(a=>a.ids)) {     itemids.add(new itemid(mailids)); }  //send 1 request ews , mails id serviceresponsecollection<getitemresponse> response = service.bindtoitems(itemids, propset);  //get emails foreach (getitemresponse getitemresponse in response) {     item item = getitemresponse.item;     emailmessage message = (emailmessage)item; }