Sorry to spread misinformation. It was completely inadvertent. What happened on my end was a failure notice from Gmail, stating that the cygwin-users was unreachable:

> Address not found
> Your message wasn't delivered to cygwin@sourceware.cygnus.com because the domain
> sourceware.cygnus.com couldn't be found. Check for typos or unnecessary spaces and try again.

Later I got a reply from the server (Gmail tries for 48 hrs) but of course, Gmail being the helpful entity that is, that mailman reply was put in my spam folder, where I forget to check for it.