Mailbox Provider: groups.io [ back to main ] Here's MX record breakdown data for groups.io. Did you know? Domain groups.io hosts mail for 4 of the top ten million domains. Here are the top 5000 domains hosted by groups.io: Rank Domain MX Record MX Domain 1 groups.io lb01.groups.io groups.io 2 dgroups.io lb01.groups.io groups.io 3 hrpmamasgroups.com lb01.groups.io groups.io 4 peachheadgroups.com lb01.groups.io groups.io 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: Fri Aug 1 14:38:01 CDT 2025