KERN-510 — Regexp in FROM and TO items are meaningless
The FROM and TO items are used for checking peers against a list of accepted/denied addresses. Only addresses of the client/server are used as the input information for this procedure, no deresolving of addresses to domain names are done. Therefore, no checking of names is executed.
However, the names occuring in the lists are resolved to corresponding addresses and these one are included to the checked set of addresses. Thus, using of names in the lists is correct approach.
In the contrary, regular expressions are meaningless since no names are checked and regexps cannot be converted to addresses.