dst_addr and subdomains

[Vitaliy Vladimirovich]

           Hi!  
 How can I specify dst_addr in my rule for all subdomains of server. E.g. example1.server.com, example2.server.com and so on.  
  
Something like this:  
  
pass out on sk0 inet proto tcp from $MY_LAN to *.example.org port www