[linuxiran] Any good email security mailing list?!!

[ocean]

Hi

Might seem a stupid question to ask here..
But some time ago when I was surfing download.com I
came across a software which claimed to be capable of
informing you when your email has been opened by the
recipient!! I've forgotten the name of the software
and I don't know exactly where I should post this
rather ODD question so...
Is it possible or it's just an illusion?

Cheers

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