Now, on the General tab click on “Return Receipts.” Here’s how to turn on return receipts in Mozilla’s email client Thunderbird:Ĭlick Tools (on the top menu bar) then click Options. Additionally, you can also get notifications when your message is successfully delivered by checking “Request a Delivery Receipt.” Mozilla Thunderbird Now, just check “Request a Read Receipt” to receive a notification when your message is opened. To request a return receipt in Microsoft Outlook, click Options on the top menu bar to bring up its sub-menu. Some email platforms, like the version of Gmail and Apple Mail, for example, do not officially support the sending of read receipt requests.įor the other major email platforms, here’s how you set them up: Outlook Some will also let you specify these receipts for every email you’re composing.įor “invisible” email tracking and read receipts, you’ll have to rely on third-party tracking software like the ones I’ll list later in this article. Return topicItems.OfType().Where(c=>c.ConversationIndex.Equals(sourceIndex)).Most email platforms will give you an option to request return/read receipts with all emails that you send out. Outlook.Items topicItems = (topicFilter) String topicFilter = string.Format(' = ''', readReceipt.ConversationTopic) Outlook.Folder inbox = .GetDefaultFolder() as Outlook.Folder Public static Outlook.MailItem FindReadReceiptSourceMessage(Outlook.ReportItem readReceipt) = 'read receipt ConversationTopic here' Locating ReportItem's parent MailItem Outlook.MailItem source = FindReadReceiptSourceMessage(ri) You can use Items.Restrict to reduce the items to a specific DASL filter DASL Search: You just need to filter by the ConversationTopic and then use the first 44 chars of the ConversationIndex to identify the original source MailItem.

This is what Outlook uses to link together the read receipt messages with the related source MailItem. It looks like the only link between the ReportItem and the source MailItem is the ConversationIndex and ConversationTopic.

Outlook read receipt options