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W3C hosts thousands of mailing lists and archives, many of them public, for the benefit of the web community at large. By providing this service, we hope to foster a highly responsive and interactive community for creating new ideas and advancing web technologies and culture.
Anyone with a valid email address can participate on a W3C public mailing list 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 (at least the first time they post.)
Each mailing list has a specific purpose; please try to avoid widely cross-posting to multiple lists, if possible.
Conference announcements are generally not welcome on W3C lists; if you feel a specific conference is of very high interest to the subscribers of a given list, you should write a custom message to that list, containing a very short summary with a pointer to more information.
Posts to our lists are generally not removed or edited, except in very rare circumstances. See our Archive Editing Policy for more information.
Subscribing and unsubscribing
Group participants are automatically subscribed to the relevant list(s) when joining the group(s), and unsubscribed when leaving.
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: email@example.com 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: firstname.lastname@example.org Subject: unsubscribe
To unsubscribe an email address other than your current address, specify the old address following
unsubscribe in the Subject, for example:
To: email@example.com Subject: unsubscribe firstname.lastname@example.org
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
email@example.com, the associated request address would be
Guidelines and policies
- W3C 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.
- W3C 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.
- W3C Guidelines for Email Attachment Formats
Guidelines on email attachments that are submitted 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.
- W3C 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.
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.
- Positive Work Environment
- Code of Ethics and Professional Conduct
- Archive Editing
- Guidelines for Attachments