Simplifying repetition of reject, warn or OK checks with same reasons

[Jon]

Hello list,

When building out the various checks available to postfix, is there a 
mechanism for doing a REJECT, WARN or OK plus the reason, en mass, 
without pasting the same text a lot? For example...

bad.guy01.com REJECT 550 Reason1
bad.guy02.com REJECT 550 Reason1
.
.
.
bad.guy50.com REJECT 550 Reason1

If this is possible, can someone recommend a link to examples of what 
would the correct syntax looks like and is it different for hash, pcre, 
etc., etc.?

Thanks!