We had a requirement to create email activity with zip file as attachment. Using other file type e.g. xlsx, docx as attachment are simple. However, using zip file as attachment is a bit different. Here’s the code to create email activity with zip file as attachment:
</pre> Entity email = new Entity("email"); email["to"] = toParty; // Entity[] already defined email["from"] = fromParty; // Entity[] already defined email["subject"] = "Test Mail"; email["description"] = "Description"; email["directioncode"] = true; Guid mailRecordId = (Guid)crmOrgService.Create(email); Entity attachment = new Entity("activitymimeattachment"); attachment["subject"] = "Attachment"; string attachFileName = string.Format("IntegrationErrorLog_{0}.zip", DateTime.UtcNow.ToFileTimeUtc()); attachment["filename"] = attachFileName; //For docx, xlsx etc. file types // byte[] fileStream = Encoding.ASCII.GetBytes(File.ReadAllText(fileName)); //For zip file byte[] fileStream = File.ReadAllBytes(fileName); attachment["body"] = Convert.ToBase64String(fileStream); //mimetype is different for different file types e.g. xlsx, docx attachment["mimetype"] = "application/zip"; attachment["attachmentnumber"] = 1; attachment["objectid"] = new EntityReference("email", mailRecordId); attachment["objecttypecode"] = "email"; crmOrgService.Create(attachment); <pre>
Hope it helps.