> > The whole SOA topic is yahoo specific, but using www... as > email's RHS is not good idea nowadays at all, as can cause > delivery problem, because it is often in SPAMs from hacked > web servers/sites, thus avoid it, if possible. >
It's not unnormal in regular operations. for instance, the top domain i mentioned, co.in, does have this case. pyh@mxin:~$ dig www.co.in soa +short pyh@mxin:~$ dig www.co.in mx +short 1 mail.happyisp.com. it's not a zone (neither soa), but have a valid MX rr. As a comparison for com.cn: pyh@mxin:~$ dig www.com.cn soa +short dns1.hichina.com. hostmaster.hichina.com. 2022052002 3600 1200 86400 600 it's a valid zone though no MX defined for this zone. -- https://kenpeng.pages.dev/ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
