The original message was received at Fri, 9 Feb 2024 17:21:27 -0600 from m0347765.ppops.net [127.0.0.1]

----- The following addresses had permanent fatal errors ----- zhangvic000@k12.prosper-isd.net (reason: 550-5.7.1 Gmail Delivery restricted to Prosper ISD, K12 Prosper ISD, and other)

----- Transcript of session follows ----- ... while talking to aspmx.l.google.com.:

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<<< 550-5.7.1 Gmail Delivery restricted to Prosper ISD, K12 Prosper ISD, and other <<< 550 5.7.1 allowed domains. - gcdp v135-20020a63618d000000b005dc55690b2bsi1654494pgb.324 - gsmtp 554 5.0.0 Service unavailable