https://uptimerobot.com/free-tools/mx-lookup/?ref=header
Free MX Lookup Tool | UptimeRobot
Check MX records for any domain instantly. Troubleshoot email delivery issues, verify server priorities, and ensure correct email setup—100% free.
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https://mxtoolbox.com/
MX Lookup Tool - Check your DNS MX Records online - MxToolbox
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https://uptimerobot.com/free-tools/mx-lookup/?ref=footer
Free MX Lookup Tool | UptimeRobot
Check MX records for any domain instantly. Troubleshoot email delivery issues, verify server priorities, and ensure correct email setup—100% free.
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https://dns-lookup.whoisxmlapi.com/lookup
DNS lookup tool to find MX, NS, SPF and more records | WhoisXML API
A tool to see MX, SPF, NS, and other DNS records via lookup queries with simple and shareable reports for any domain of interest. We cover +2B hostnames.
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