Publisher review:qconfirm is an implementation of a delivery confirmation process for a mailing list or mail address. qconfirm is an implementation of a delivery confirmation process for a mailing list or mail address.
It is invoked by qmail-local through a dot-qmail file, and can reduce the amount of junk mail hitting a mailbox or the mailboxes of mailing list subscribers. qconfirm performs this delivery confirmation process either sender based or message based.
When used for a public mail address, not a mailing list, qconfirm is capable of detecting follow-ups on mail messages originated from this mail address, and doesn't request delivery confirmation is this case.
qconfirm also is able to identify delivery confirmation requests from recipients of mail messages, and automatically confirms the delivery if desired.
Sender-based delivery confirmation If qconfirm-check runs in sender mode, messages from known envelope senders are accepted without a confirmation, and immediately allowed to be processed further in the .qmail file.
qconfirm-check defers messages from unknown envelope senders temporarily, and sends a confirmation request message to the sender. The original message and all newer messages from the same sender will be deferred temporarily until a reply to the confirmation request is received.
The messages bounce if queuelifetime has expired. New messages from the same sender do not result in new confirmation requests.
Once an envelope sender has confirmed a delivery, qconfirm-check permanently treats this envelope sender as known. Message-based delivery confirmation If qconfirm-check runs in message mode (option -m is set), each single message needs to be confirmed to be allowed to be processed further in the .qmail file.
The messages bounce if queuelifetime has expired. Requirements: · qmail · daemontools
qconfirm is a C/C++ script for E-Commerce scripts design by Gerrit Pape.
It runs on following operating system: Linux / BSD.
qconfirm is an implementation of a delivery confirmation process for a mailing list or mail address.
Operating system:Linux / BSD
qconfirm script details 
