Security gateway
Retarus MX records
Retarus is a security gateway. Type any domain below to see if its email runs through Retarus.
Provider profile
Retarus
Retarus MX records end in .retarus.com. Retarus is a security gateway.
What is a security gateway?
A security gateway sits in front of the real mailbox to filter spam, phishing, and malware before mail reaches its destination. Inspection alone cannot tell you which mailbox provider sits behind it.
MX hostname patterns
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.retarus.com
Other security gateways
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