Mailbox Provider: open.ch [ back to main ] Here's MX record breakdown data for open.ch. Did you know? Domain open.ch hosts mail for 13 of the top ten million domains. Here are the top 5000 domains hosted by open.ch: Rank Domain MX Record MX Domain 1 credit-suisse.com mx11.ubs.open.ch open.ch 2 ubs.com mx11.ubs.open.ch open.ch 3 open.ch mx1.open.ch open.ch 4 open-systems.com mx1.open.ch open.ch 5 ubs-sumitrust.com mx11.ubs.open.ch open.ch 6 creditsuisse.com mx11.ubs.open.ch open.ch 7 hamiltontestdomain.com mx11.ubs.open.ch open.ch 8 testingiaconversion.net mx11.ubs.open.ch open.ch 9 ubs.ch mx11.ubs.open.ch open.ch 10 aventicum.com mx11.ubs.open.ch open.ch 11 painewebber.com mx11.ubs.open.ch open.ch 12 ubssecurities.com mx11.ubs.open.ch open.ch 13 claridenleu.com mx11.ubs.open.ch open.ch 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 22:01:37 CDT 2025