W3C hosts thousands of mailing lists for our group members and the general public to discuss and send feedback on Web standards work at W3C. The corresponding mailing list archives contain millions of messages dating back to the earliest days of the Web.
Most W3C public mailing lists allow anyone to join and participate, following the steps below.
Each W3C mailing list has its own policies regarding who may post to the list. Those subscribed to a list are generally able to post directly to the list without delay; those who are not may be subject to manual moderation.
Each mailing list has a specific purpose. Please avoid cross-posting to multiple lists.
Conference announcements and calls for papers or participation are generally not welcome on W3C lists. Please see our spam policy for more details.
Messages in our mailing list archives are generally not removed or edited, except in very rare circumstances. See our Archive Editing Policy for more information.
Subscribing and unsubscribing
Members of W3C groups are automatically subscribed to the relevant list(s) when joining the group(s), and unsubscribed when leaving.
Many of our public mailing lists also allow subscriptions without being a member of a group, using an email command interface described below.
Group-related mailing lists
To subscribe or unsubscribe to mailing lists associated with a W3C group, please visit the home page for the group(s) in question.
A list of your current groups is available on your user profile page.
To subscribe to a W3C mailing list, for example
www-talk, send "subscribe" in the subject of a message to the list name followed by -request at our domain, for example:
To: firstname.lastname@example.org Subject: subscribe
You should receive an automated response with instructions on how to confirm your subscription request. Note that you will not get an acknowledgement if you are already subscribed.
To unsubscribe from a mailing list, for example
www-talk, send "unsubscribe" in the Subject of a message to the list name followed by "-request" at our domain, for example
To: email@example.com Subject: unsubscribe
To unsubscribe an email address other than your current address, specify the old address following
unsubscribe in the Subject, for example:
To: firstname.lastname@example.org Subject: unsubscribe email@example.com
In either case you should receive an autoreply with instructions on how to confirm your request.
Asking for help
All mailing list administrative requests, including asking for help, must be sent to a
*-request address (per RFC2142), never to the list itself. For a mailing list named
firstname.lastname@example.org, the associated request address would be
Searching and referencing
An archive search tool is available.
It is frequently useful to refer to a message (e.g., from the body of an email or from a web page) using a URI to the message in the archive. In addition, you can use the message's own "message-id" and map it to the archive URI using the message-id mapping tool.
Guidelines and policies
- Mailing list policies
Policies that apply to our mailing lists, and answers to frequently asked questions.
- Spam policy
How we define spam, what we do about it, and why.
- W3C Positive Work Environment and Code of Ethics and Professional Conduct
W3C's policies for appropriate behavior, including on our mailing lists.
- Email forgery prevention using SPF (Sender Policy Framework)
Information on our use of SPF to block forged email and prevent email forgeries in our name.
- Guidelines for email attachment formats
Guidelines on email attachments for messages sent to W3C mailing lists.
- Filtering email from W3C lists
Some advice on how to filter mail from W3C mailing lists in various email clients.
- Policy on subject tagging
Rationale for not adding tags to the subjects of our lists.
- Archive editing policy
W3C policy on editing/removing posts in online mailing list archives.
- Email address obfuscation
Some notes on the amount of email address obfuscation performed on messages in W3C's mailing list archives.