如何使用C＃中的EWS托管API獲取多個O365郵件ID的郵件詳細信息

Question

我需要使用c＃中的EWS托管API來獲取不同郵件ID的多個o365郵件詳細信息。 假設我有1,2,3這樣的o365郵件ID ...

當我將傳遞這些郵件ID並調用EWS托管API時，應填充郵件ID的詳細信息。 我使用以下代碼完成了單個電子郵件ID的詳細信息填充：

 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);

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Answer 1

嘗試這個：

ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013_SP1);
service.Credentials = new WebCredentials("username", "Password");
service.AutodiscoverUrl(Ownerusername, RedirectionUrlValidationCallback);

//Make sure you include the properties you are looking for in EmailMessageSchema
PropertySet propSet = new PropertySet(BasePropertySet.IdOnly, EmailMessageSchema.Subject, EmailMessageSchema.ToRecipients);

//Add your Ids stored in the database here
var itemIds = new List<ItemId>();
foreach(var MailIds in db.Mails.select(a=>a.Ids))
{
    itemIds.add(new ItemId(MailIds));
}

//Send one request to EWS and get all mails by Id
ServiceResponseCollection<GetItemResponse> response = service.BindToItems(itemIds, propSet);

//Get the emails
foreach (GetItemResponse getItemResponse in response)
{
    Item item = getItemResponse.Item;
    EmailMessage message = (EmailMessage)item;
}