Returned mail: see transcript for details

From: MAILER-DAEMON@ip-172-31-13-184.ec2.internal
Domain: IP info ip-172-31-13-184.ec2.internal
MX-server: IP info ip-172-31-13-184.ec2.internal
Size: 781 Bytes
Create: 2024-01-06
Update: 2024-05-28
Score: 37
Safe: Yes

The original message was received at Sat, 6 Jan 2024 21:49:10 GMT from localhost [127.0.0.1] ----- The following addresses had permanent fatal errors ----- (reason: 550-5.7.1 [3.214.139.111 7] Gmail has detected that this message is likely) ----- Transcript of session follows ----- ... while talking to gmail-smtp-in.l.google.com.: >>> DATA