Hi to all. I want to know how can I get the information of an email sent has been read or not, how it is shown in the K9 mail android interface. I have activated the “read receipt” option, but I think that no additional information is being shown. Any help would be appreciated. 
I believe, if the other side supports it, you’ll get a email message that the email was opened.
I usually turn off this feature as I don’t want these messages going out. Thus, it’s very unreliable.
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