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Hello.
I've seen in the documentation of qmail that it has
qreceipt, to use if a mail comes with the header:
Notice-Requested-Upon-Delivery-To
Can it be used if the header has this other
option?:
Return-Receipt-To
Anyway, they both doesn't work on my server because
they say:
502 unimplemented (#5.5.1)
I suppose I have to recomplie qmail with some
option, but which one?
Thanks.
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