********************************************** ** THIS IS A WARNING MESSAGE ONLY ** ** YOU DO NOT NEED TO RESEND YOUR MESSAGE ** ********************************************** The original message was received at Sun, 18 Sep 2022 14:50:00 -0700 from: ----- Transcript of session follows ----- ... while talking to shw-central.mx.a.cloudfilter.net.: >>> DATA <<< 421 4.2.0 sender rejected AUP#SNDR ... Deferred: 421 4.2.0 sender rejected AUP#SNDR Warning: message still undelivered after 1 hour Will keep trying until message is 3 hours old