>Several years ago, my employer's e-mail spam filter blocked the Unicode >mailing list as a "suspect site." Earlier this year, GoDaddy (registrar >of my domain name) did the same, and it took months to figure out what >was going on. What connection does any of this have to do with DNSBLs? There are lots of less than fabulous ways to manage a mail system poorly, most of which have nothing to do with looking up IP addresses in a DNS list. R's, John _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf