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Add "Delivery Status notification" on email written in "Unsent messages"

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Hi everyone! I'm trying to write and send an Email from "Unsent messages" on Thunderbird adding "Delivery Status notification", but when it arrive the system doesn't answer me with the notifitification that I added before send the message. Someone could help me please? Thanks, and sorry for bad english! I hope you undestand my request.

Hi everyone! I'm trying to write and send an Email from "Unsent messages" on Thunderbird adding "Delivery Status notification", but when it arrive the system doesn't answer me with the notifitification that I added before send the message. Someone could help me please? Thanks, and sorry for bad english! I hope you undestand my request.

All Replies (1)

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Duplicate post. See the first one: https://support.mozilla.org/questions/1159413