OofSettings.InternalReply property
EWS Managed API
Gets or sets the out of office (OOF) message that is sent to other users in the user's domain or trusted domain.
Assembly: Microsoft.Exchange.WebServices (in Microsoft.Exchange.WebServices.dll)
Property value
Type: Microsoft.Exchange.WebServices.Data.OofReplyThe contents of the OOF message that is sent to other users in the user's domain.