In a message of Sat, 25 Apr 2015 08:42:10 -0700, Mark Sapiro writes:

On 04/22/2015 09:49 PM, Laura Creighton wrote:

...

Maybe at the point where we mention 'you must have cookies enabled' we should mention that load balancers can cause problems?

What Stephen said plus, the stuff about cookies is on admin, moderator and private archive logon pages which someone who goes to the listinfo page to subscribe doesn't see. Of course, you are free to edit the listinfo page(s) for your list(s) via the web admin UI "Edit the public HTML pages and text files" link and add whatever text you want there.

As I said before, this is reported as a bug <https://bugs.launchpad.net/mailman/+bug/1447445> which is "fixed" for the next release, and which fix has been installed for the mail.python.org Mailman. The fix is for IPv4 addresses, only require the first 3 octets to match and for IPv6 addresses, only require the address up to the last : to match. This would have avoided the issue in your user's case, and I think will avoid it in most if not all cases. Also, the error messages have been augmented to try to make them point more directly to the problem.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan