for the expansion of the server_scram_iter and server_scram_salt options.
WB/01 SPF: DNS lookups for the obsolete SPF RR type done by the libspf2 library
- are now specifically given a HOST_NOT_FOUND response without hitting the
- system resolver. The library goes on to do the now-standard TXT lookup.
+ are now specifically given a NO_DATA response without hitting the system
+ resolver. The library goes on to do the now-standard TXT lookup.
Use of dnsdb lookups is not affected.