Mailbox Provider: citi.com [ back to main ] Here's MX record breakdown data for citi.com. Did you know? Domain citi.com hosts mail for 13 of the top ten million domains. Here are the top 5000 domains hosted by citi.com: Rank Domain MX Record MX Domain 1 citi.com mx-a.mail.citi.com citi.com 2 citigroup.com mx-a.mail.citi.com citi.com 3 citibank.com mx-a.mail.citi.com citi.com 4 citibankonline.com mx-a.mail.citi.com citi.com 5 banamex.com mx-a.mail.citi.com citi.com 6 citicorp.com mx-a.mail.citi.com citi.com 7 citibanamex.com mx-a.mail.citi.com citi.com 8 citibank.com.sg mx-a.mail.citi.com citi.com 9 citibank.com.au mx-a.mail.citi.com citi.com 10 accountonline.com mx-a.mail.citi.com citi.com 11 citibank.com.vn mx-a.mail.citi.com citi.com 12 cardservicesdirect.com.au mx-a.mail.citi.com citi.com 13 citimortgage.com mx-a.mail.citi.com citi.com 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 10:32:27 CDT 2025