[Mailman-Users] Administrators postings bounced back

[Harv at treeclimbingcolorado.com]

I've recently set up Mailman on my website, as an announcement only list.  
When trying to send out my first announcements from the address authorized 
as administrator and owner, email was bounced back with a "you are not 
authorized..." message.  Tried adding a "catchall" address, same domain, in 
my settings, but made no difference.  Only thing I can think of  - I've also 
subscribed the same address as a regular list member in order to confirm 
delivery.  Could Mailman be bouncing this address's emails as an 
unauthorized subscriber rather than allowing them as the administrator? 

Harv