Managing Mailing List Subscriptions

W3C welcomes participation in W3C work through its many mailing lists. See below for information about:

General Information

All mailing list administrative requests must be sent to a *-request address (per RFC2142), never to the list itself. For a mailing list named list-name@w3.org, the associated request address would be list-name-request@w3.org.

The following are examples of how to determine the request form of a list:

list namerequest address
www-html@w3.org www-html-request@w3.org
www-talk@w3.org www-talk-request@w3.org
html-tidy@w3.org html-tidy-request@w3.org


If you are participating in a Community or other group, your mailing list subscription is automatic.

Subscribe to the list. If you want to subscribe under a different address, use a Reply-To header in the message. Also, be sure you have read our spam policy and our Guidelines for Email Attachment Formats before subscribing.

        To: www-talk-request@w3.org
        Subject: subscribe

Note that you will not get an acknowledgement if you are already subscribed.

Also note that W3C mailing lists do not currently support a digest mode. RSS feeds are available, however.


If you are participating in a Community or other group, leaving that group terminates your mailing list subscription automatically.

Unsubscribe from the list. This can be done from an address different from the one with which you subscribed. For example, to unsubscribe from "www-talk@w3.org" use:

        To: www-talk-request@w3.org
        Subject: unsubscribe


        From: new@example.org
        To: www-talk-request@w3.org
        Subject: unsubscribe old@example.org

Most (un)subscription requests are processed automatically without human intervention. Do not send multiple (un)subscription or info requests in one mail. Only one will be processed per mail.

Asking for Help

Get information about the mailing list.

The *-request server usually does quite a good job in discriminating between (un)subscribe requests and messages intended for the maintainer. If you for some reason would like to make sure a human reads your message, make it look like a reply (i.e. the first word in the "Subject:" field should be "Re:", without the quotes of course); the *-request server does not react to replies.

Address Changes

In the event of an address change, first send an unsubscribe for the old address (this can be done from the new address), and then a new subscribe from the new address (the order is important).