This document addresses the situation when a Merchant Plug In (MPI) is unable to send a VEReq (Verify Enrollment Request) message to American Express SafeKey (CA Directory Server).
What is the Public IP address to be used by MPI to send a VEReq to the front-end SafeKey DS server?
CA (CA Technologies Inc.) recommends that MPI should use a URL not the direct IP address.
The URL for MPI to use is "https://ds.amexsafekey.com". Note that this URL currently resolves to 18.104.22.168
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