(optional) Defines whether new members receive a confirmation request when joining the mailing list. The confirmation request will be an email message telling the person that they have
requested to join this mailing list, and the person will have to respond to the confirmation message in order to become a full member. The new member's status will be set to confirm until
the confirmation response is received, and the person will not receive mail from the mailing list until the confirmation is received.
Confirmation serves several purposes. It is quite common for people to mistype their email address when subscribing to a mailing list using the Lyris Web Interface. Without confirmation, the Lyris
Server would waste effort trying to send mail to this incorrect address.
Another need for confirmation is to counter a common form of Electronic Terrorism. The Terrorist will sign someone they wish to harm to many mailing lists (perhaps several hundred), and that person
will then be flooded with unwanted electronic mail, such that they will be unable to accomplish any work with that email address. If that person's email server is not perfectly configured, the act
may crash the person's email server, use vast qualities of Internet bandwidth, or prohibit other people sharing the email server from receiving their email.
The Confirmation feature blocks this form of Electronic Terrorism. If the Terrorist subscribes someone to 100 Lyris mailing lists (all with Confirm set to Yes), the person will
receive 100 confirmation messages, but no more mail after that. If the person does not respond to the subscription confirmation messages (as they should not), their memberships will not be
We highly recommend that all Open mailing lists use the Confirm feature, as this form of Electronic Terrorism is quite common, and is very bothersome to the victim.