[Mailman-Developers] Support for X-No-Archive

[Jeff Breidenbach]

> http://www.mail-archive.com/faq.html specifies "X-No-Archive: yes"

It's been a long time, but I vaguely remember lowercase 'yes' being
canonical which is why we specify it that way in the FAQ. In practice
mail-archive.com treats the header as case insensitive.

Here's some data on common practices, taken from a recent week
of mail-archive.com's inbound mail.

$ zgrep -i "^x\-no\-archive:"  *.mbox.gz |  cut -f3 -d":" | sort | uniq -c

     72  no
    183  No
   6407  yes
    108  Yes
     47  YES