Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Wed, 1 Oct 2025 20:57:14 GMT

The original message was received at Wed, 1 Oct 2025 20:57:13 GMT
from m0417478.ppops.net [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 [SJ1PEPF000023D7.namprd21.prod.outlook.com 2025-10-01T20:57:14.232Z 08DDFD73AEA2AEEF])

   ----- Transcript of session follows -----
... while talking to infocorp365.mail.protection.outlook.com.:
>>> DATA
<<< 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 [SJ1PEPF000023D7.namprd21.prod.outlook.com 2025-10-01T20:57:14.232Z 08DDFD73AEA2AEEF]
554 5.0.0 Service unavailable