Mailbox Provider: yahoo.co.jp [ back to main ] Here's MX record breakdown data for yahoo.co.jp. Did you know? Domain yahoo.co.jp hosts mail for 3 of the top ten million domains. Here are the top 5000 domains hosted by yahoo.co.jp: Rank Domain MX Record MX Domain 1 yahoo.co.jp mx1.mail.yahoo.co.jp yahoo.co.jp 2 yahoo.ne.jp ymobilemx1.mail.yahoo.co.jp yahoo.co.jp 3 tohto.ac.jp ptnmx1.mail.yahoo.co.jp yahoo.co.jp This ranking is relative inside of top 10 million results. Find more information about the "top domains" data from host.io. DNS Snapshot date: June 2025 Page generated at: Sat Aug 2 04:50:39 CDT 2025