Inbound relay
Resend MX records
Resend is an inbound relay. Type any domain below to see if its email runs through Resend.
Provider profile
Resend
Resend MX records end in .resend.com. Resend is an inbound relay.
What is an inbound relay?
An inbound relay accepts mail over SMTP and hands it off to an application via API or webhook. There is no human inbox at the other end.
MX hostname patterns
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.resend.com
Other inbound relays
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