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Does Apple Mail process return receipts sent FROM Thunderbir

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kitesarefun
 
Posts: 157
Joined: January 18th, 2006, 4:22 pm

Post Posted April 7th, 2021, 9:02 am

Do return receipts work at all when you send email from Thunderbird on Windows to someone who uses Apple Mail? In the test I ran, the answer is no. Here is the test I ran:

- I sent email from Thunderbird on Windows to someone's personal address and they read it on Apple Mail on a Mac. I got no receipt. They did not see any notification about "sender asked to be notified when you read the message...". They have never made any changes to the settings that might block receipts.

- I sent email from Thunderbird on Windows to someone's work address and they read on Outlook on Windows. I got a receipt. They did not see any notification about "sender asked to be notified when you read the message...".

kitesarefun
 
Posts: 157
Joined: January 18th, 2006, 4:22 pm

Post Posted April 7th, 2021, 9:06 am

Is there a way to see if I requested a return receipt in an email I sent? Obviously this would be for cases where the option for requesting receipts for all mails was not turned on.

tanstaafl
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Posts: 47490
Joined: July 30th, 2003, 5:06 pm

Post Posted April 7th, 2021, 4:45 pm

My impression is most modern email clients provide some way to disable return receipt requests. Sometimes its disabled by default.

If you look at the raw message source of the message you sent using Control-U you should be able to see headers such as "Disposition-Notification-To" and "Return-Receipt-To" .

http://kb.mozillazine.org/Figuring_out_ ... ur_message

https://www.chilkatsoft.com/p/p_313.asp ... d%20method.

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