18 Feb
2024
18 Feb
'24
4:50 p.m.
The original message was received at Sun, 18 Feb 2024 10:44:50 -0500 from m0338033.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 [DS1PEPF00017094.namprd03.prod.outlook.com 2024-02-18T15:44:50.966Z 08DC2C57D1BE2ADB]) ----- Transcript of session follows ----- ... while talking to hu.mail.protection.outlook.com.:
DATA <<< 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 [DS1PEPF00017094.namprd03.prod.outlook.com 2024-02-18T15:44:50.966Z 08DC2C57D1BE2ADB] 554 5.0.0 Service unavailable