[n5bb]

You can do this using:

• If all of the following conditions apply:
• The sender's email ends with (domain)
• The sender's email does not match glob pattern (address)
• Send a copy to (address)

This rule creates sieve code similar to:

if 
   allof(
   address :matches "From" "*example.org",
   not address :matches "From" "ignore@example.org"
   )
 {
   redirect :copy "jcitizen@fastmail.fm";
  }

Bill