set reply-to address in outgoing email EWS

user_3221067 0
Viewed 2967

Running Exchange 2013

I am using EWS in a c# service that sends emails from a service account.

I want to have the emails have a reply-to address different than the sending account, a distribution list address.

How can I do this? The EmailMessage.ReplyTo field is read only.

Code:

ExchangeService service = new ExchangeService();
service.Credentials = EWScredentials;
service.Url = new Uri(string.Format("https://{0}/EWS/Exchange.asmx", ExchangePath));

EmailMessage message = new EmailMessage(service);
message.ToRecipients.AddRange(receipients);

//This didn't work
message.ReplyTo.Clear();
message.ReplyTo.Add(replyToAddress);

message.Subject = subject;
message.Body = html;
message.SendAndSaveCopy();

Only other thread that seemed related, though I'm not using powershell: How do you set a message Reply-To address using EWS Managed API?

exchangewebservices c#
5 Answers

that work for me :

EmailAddressCollection emailAddressCollection = new EmailAddressCollection();
emailAddressCollection.add(new EmailAddress("ReplayToEmail@gmail.com"));
emailMessage.getPropertyBag().setObjectFromPropertyDefinition(EmailMessageSchema.ReplyTo, emailAddressCollection);
user_106619920

I solved this by loading the ToRecipients and CcRecipients properties on the EmailMessage replyMessage object.

C# code is something like this:

// somehow get a hold of an ExchangeService object
var message = service.Bind(service, mail.Id);
var replyMessage = message.CreateReply(replyToAll: true);

replyMessage.Load(new PropertySet() { EmailMessageSchema.ToRecipients, EmailMessageSchema.CcRecipients });

replyMessage.ToRecipients.Add("some_email@email.com");
replyMessage.CcRecipients.Add("some_email_cc@email.com");

replyMessage.Send();

Of course, if you don't plan on working with Cc, you don't have to load it. This allows you to append new addresses, or clear the recipients and add whatever you want.

user_12904940

There is a simpler solution: use ResponseMessage:

ResponseMessage responseMessage = originalEmail.createReply(isReplyAll);
responseMessage.getToRecipients().addEmailRange(...email address...);
responseMessage.sendAndSaveCopy();
user_140660690

I'm sure it's due to this question being 6 years old, and the library has been updated since.

The ReplyTo property is a readonly EmailAddressCollection that can be cleared, and added to.

var emailSend = new EmailMessage(service)
emailSend.ToRecipients.Add("recipient@example.com");

// change the reply-to
if(email.FromAddress.ToLower() != "noreply@example.com"){
    emailSend.ReplyTo.Clear();
    emailSend.ReplyTo.Add(new EmailAddress() { Address = "replyto@example.com" });
}
                                
emailSend.Save();
emailSend.Send();
user_9028740
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