From: Mail Delivery Subsystem <MAILER-DAEMON@DJJMDCJCO1-PPOINTO8.jcots.jutnet.net> Subject: [EXTERNAL] Returned mail: see transcript for details Date: Mon, 15 Nov 2021 03:34:03 +0000 Embedded: unnamed The original message was received at Mon, 15 Nov 2021 03:33:57 GMT from [10.187.9.62] oo The following addresses had permanent fatal errors ----- <bessternheim@mac.com> (reason: 550 5.1.1 <bessternheim@mac.com>: user does not exist) oo Transcript of session follows ----- ... while talking to mx02.mail.icloud.com.: >>> DATA <<< 550 5.1.1 <bessternheim@mac.com>: user does not exist 550 5.1.1 <bessternheim@mac.com>... User unknown <<< §54 5.5.1 Error: no valid recipients EFTA00010153