Sending messages from non-subscribed address

["SUSAN WILLIS" <smw@sos.net>]

I tried sending a message to RC and got back the following message, so I
would say that all is working normal again.
*****************************************
Your post to Ridecamp (ridecamp@endurance.net) was rejected
for one of the following reasons:

1. You are not a registered subscriber to Ridecamp. If this is the
case, you may register at http://www.endurance.net/RideCamp or
you may use the Guest form which is also available at
http://www.endurance.net/RideCamp/

2. You are a registered subscriber, but the email address in the
Sender/ReplyTo field of your message does not EXACTLY match your
subscription email address. (e.g. fast@horse.com vs fast@mail.horse.com)

3. You may have been removed from the list. If your server is rejecting
email because of a full mailbox or technical difficulties, the message
bounces back to the Ridecamp server as 'not able to deliver this message'.
After several unsuccessful attempts to deliver messages, the Ridecamp
software will automatically remove the 'bad' email address from the
list. If you suspect that this is the case, you may go to the Registered
Ridecamp Subscriber form available at http://www.endurance.net/RideCamp/
and re-subscribe.

If you continue to have problems posting to Ridecamp, please contact
Steph Teeter at step@endurance.net.