Returned mail: see transcript for details
24 Oct
2023
24 Oct
'23
1:46 p.m.
The original message was received at Tue, 24 Oct 2023 07:39:19 -0400 from m0338034.ppops.net [127.0.0.1] ----- The following addresses had permanent fatal errors ----- <frank_neffke@hks.harvard.edu> (reason: 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 [CO1PEPF000042AA.namprd03.prod.outlook.com 2023-10-24T11:39:20.476Z 08DBD24C48680768]) ----- Transcript of session follows ----- ... while talking to hu.mail.protection.outlook.com.:
DATA <<< 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 [CO1PEPF000042AA.namprd03.prod.outlook.com 2023-10-24T11:39:20.476Z 08DBD24C48680768] 554 5.0.0 Service unavailable
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MAILER-DAEMON@amazonses.com