>Any email address oracle service will find its biggest consumer to be >spammers. I do not think anyone will deploy such on oracle/service.
This is certainly true. The SMTP protocol has always had oracle commands VRFY (does this address exist?) and EXPN (what are the real address(es) for this address?) The number of MTAs that currently provide support either of those rounds to zero. On the other hand, I think that a lookup service that takes an address and returns a key would be workable. Yeah, spammers will try to scrape addresses from it, but it's the same attack as RCPT TO probing and we have workable defenses against that. R's, John _______________________________________________ dane mailing list [email protected] https://www.ietf.org/mailman/listinfo/dane
