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When I choose Delivery Status Notification, nothing happens; what is it supposed to do?

DrRGF
DrRGF
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I expect Delivery Status Notification to tell me that a message has reached various stages in delivery and receipt but I can't find any specification of what or how.

I expect Delivery Status Notification to tell me that a message has reached various stages in delivery and receipt but I can't find any specification of what or how.

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user01229325
user01229325
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http://kb.mozillazine.org/Figuring_out_whether_the_recipient_read_your_message

DrRGF
DrRGF Question owner
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Thanks Airmail. It answers a load of questions which I hadn't thought of yet but doesn't cover the simple questions. By experiment, I get a failure reply if I send an e-mail to an invalid address; should I expect anything at all if I send an e-mail to a valid address? Best wishes, DrRGF.

user01229325
user01229325
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There are no exacts in email. If you want proof send certified mail.