It appears that Fehlauer, Norbert via mailop <n.fehla...@systema-online.de> said: >-=-=-=-=-=- >-=-=-=-=-=- > >Hi, > >I know that an underscore in DKIM selectornames usually trigger a DKIM neutral >error. I guess >somewhere in the RFC it is stated if an underscore is allowed or accepted. Can >someone please >point out the correct RFC to me?
RFC 6376 section 3.1 says that a selector is a sequence of dot separated sub-domain items, which is imported from RFC 5321 which says sub-domain is a sequence of letters, digits, and hyphens, i.e., a host name. The underscore in the selector is just wrong. I don't know what Cloudflare is thinking. R's, John _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
