[SML] Problems posting from Yahoo

[joe at dunfee.com]

I am  not able to post to the list from Yahoo.  I have had this happen 
for the last 3 attempts to post, so I thought I would try something 
different.  Years ago, I first subscribed using my address at the 
dunfee.com domain, but a few years ago, it became impossible to post to 
the list from that account.  Eventually I gave up trying, and created 
the Yahoo address for that purpose.  It has worked until now.

The error message has consistently been,
Sorry, we were unable to deliver your message to the following address.
<stagecraft at theatrical.net>:
500: 5.5.1 Command STARTTLS unrecognized.

This has occurred regardless of if I am replying to an individual 
posting, or creating a new one.

Any idea?

-Joe