The original message was received at Tue, 28 Jan 2025 09:38:16 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550-5.7.1 [83.138.65.30 18] Gmail has detected that this message is likely) (reason: 403 4.7.0 TLS handshake failed.) (reason: 451 4.7.1 : Recipient address rejected: Throttling too many connections from new source - Try again later.) ----- Transcript of session follows ----- ... while talking to aspmx.l.google.com.: >>> DATA ... Deferred: 403 4.7.0 TLS handshake failed. ... while talking to smtp.cimaa.pt.: >>> DATA : Recipient address rejected: Throttling too many connections from new source - Try again later. ... Deferred: 451 4.7.1 : Recipient address rejected: Throttling too many connections from new source - Try again later.