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Setup for sending Receipt for message on opening

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When I open an Email message on my computer I wish to send automatically a return message to sender saying your message has been read, how do I do that??

When I open an Email message on my computer I wish to send automatically a return message to sender saying your message has been read, how do I do that??

Modified by bobspeak

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Firefox does not do email, it's a browser only.

What eMail server are you using? If you are using Thunderbird, you can post your question here:

http://support.mozillamessaging.com/en-US/home