Skip to main content

Email lists

Much of the daily work of the IETF is conducted on electronic mailing lists.

Any interested individual with technical expertise can contribute to IETF work via email. Here we describe the three types of lists we use, plus some other general information you’ll need to know about using email in the IETF.

Contributions to IETF work, including all messages to IETF email lists, are covered by the Note Well policy.

Discussion lists

Discussion lists are the largest category of IETF lists, ranging from very general (the IETF at large) to very focused (a specific working group). With very few exceptions, anyone in the IETF community can send mail to any discussion list.

The general IETF Discussion list encompasses a wide variety of topics, mostly technical and some non-technical. While acceptable topics never include advertising, solicitations of employment, or overly personal posts, here you can find all manner of threads which relate to IETF policy and direction as well as technical issues, new proposed work, and general questions.

For more thorough details about the IETF discussion list and other lists of this type, please visit the discussion list page or find a specific group’s list on its page in the IETF Datatracker.

Announcement Lists

Announcement lists are used for distributing information about various topics and do not allow replies. Anyone may subscribe to these six announcement lists:

  • I-D Announce broadcasts actions taken on Internet-Drafts currently being considered by the IETF. [List info | Archive]
  • New Working Group Docs sends notifications when Internet-Drafts are adopted by an IETF working group [List info | Archive]
  • IETF Announce broadcasts announcements about IETF meetings, the activities and actions of the IESG, the RFC Editor, and the Nominating Committee, and other announcements of interest to the IETF community. [List info | Archive]
  • IPR Announce sends notifications when IPR disclosures are uploaded to the IETF website. [List info | Archive]
  • IESG Agenda Distribution sends a summarized agenda for each IESG biweekly teleconference. [List info | Archive]
  • RFP Announce distributes new RFPs for IETF related work and announces contract awards. [List info | Archive]

Non-Working Group Lists 

Non-Working Group lists are for discussing topics that may be of interest to IETF participants but aren't directly related to work within a Working Group or other IETF work.

To request a non-WG mailing list, please refer to "Non-Working Group Email List Guidelines".


Archives are maintained for each list and can be found in a number of ways:

  • Web archives: available at the IETF Mailarchive
  • Text archives: index of text archives
  • IMAP subscriptions: An IMAP server with all IETF email list archives is available for IMAP access at
    For authenticated access, use your IETF Datatracker login and password. For anonymous access, use username="anonymous", and provide your email address as a password.

Unfortunately, the archives for some lists from many years ago, when the IETF did not have its own servers, have been lost.

Concluded Activities

The mailing lists for concluded IETF activities may be available via the archives (see above). Alternatively, there is a catalogue of concluded Working Groups and BOFs which provides pointers to mail archives if available.

Information for first-time subscribers

Preventing list spam is a high priority for the IETF.  As a result, we have a challenge-response system known as Postconfirm which sends confirmation messages out when email messages come in from new or unknown addresses.

First-time subscribers to the IETF who send an email to a list immediately after subscribing will generally receive confirmation emails prior to their original message being accepted. If you don't see your first messages go through, please check your inbox and/or spam folder for confirmation emails which should have arrived right after you sent your original message.  A quick reply to the confirmation email will release your original message and send it through automatically. Messages sent after the initial posting confirmation reply will not require further confirmation.


When you subscribe to a IETF email list, Mailman will offer you the opportunity to enter a privacy password. As they state on the list subscription page, "this provides only mild security, but should prevent others from messing with your subscription. Do not use a valuable password as it will occasionally be emailed back to you in cleartext. If you choose not to enter a password, one will be automatically generated for you, and it will be sent to you once you've confirmed your subscription. You can always request a mail-back of your password when you edit your personal options. "

Please note that although Mailman will send the password reminders for each subscription in clear text in an email, the passwords are encrypted on the server and can not be read by anyone, list admins or server admins. You can also disable the password reminder function by individual email list, or globally for a particular email address.

Changing a subscriber address globally

  1. Go to<acronym of a wg list you are subscribed to (for example quic)>/<your email address>
  2. Enter your password. (If you do not remember your password, there is a button here to have the system send you a password reminder.)
  3. Under the "Changing your IETF list information" section, enter
    your new email address in the appropriate fields. 
  4. Check the "Change globally" box.
  5. Hit the "Change My Address and Name" button.
  6. You will receive an email at your new address asking you to confirm the change.

Bounce policy 

Occasionally list subscribers will have their addresses disabled due to the internal Mailman bounce policy; this policy is explained below.

Each email address that mailman sends to has a corresponding bounce score. Every day that mail to an address bounces back will cause the bounce score for that email address to be increased, by 1 for a hard (fatal) bounce and by 0.5 for a soft (transient) bounce. If mailman can't determine whether it's a hard or a soft bounce it uses hard by default.

Once the bounce score for an email address reaches 5 the account (subscription) will be disabled. Mailman will try sending 3 warning messages, each 3 days apart, to the email address to the tell the recipient their account has been disabled and how to re-enable it. If the account is still disabled after this then mailman will remove the email address from the membership list.


The IETF uses Mailman to manage IETF email discussions.

Usage data

We publish limited monthly statistics on list membership and usage.