Generates a series of CNAME records pointing from the aliases
to the current host/domain.
+TXT(text)
+ Generate a TXT record for the current host or domain.
+
+RP(mail, txt)
+ Generate a RP (responsible person) record for the current host or domain.
+ The first argument is a mail address in DNS notation (with `@' replaced
+ by `.' as in the SOA record), the second one is a name of a TXT record
+ with contact information.
+
CNAME(src, dest)
Generate a CNAME record -- "src" points to "dest".