Hello!!
I'm using squirrelmail and i add the header "Return-receipt-to" when a mail is sended but the sender don't receive any notification where the receipt open the mail.
The header is writted and received because it appear in the mail opened by receipt.
Somebody knows why don't the sender receive a notification??
Thanks for all and regards.
I'm using squirrelmail and i add the header "Return-receipt-to" when a mail is sended but the sender don't receive any notification where the receipt open the mail.
The header is writted and received because it appear in the mail opened by receipt.
Somebody knows why don't the sender receive a notification??
Thanks for all and regards.