The original message was received at Wed, 29 Jan 2025 11:33:36 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 Spam message rejected) (reason: 550-5.7.26 Your email has been blocked because the sender is unauthenticated.) (reason: 550-5.7.26 Your email has been blocked because the sender is unauthenticated.) (reason: 550 5.7.1 Refused by local policy. No SPAM please! (#8)) (reason: 550 Message discarded as high-probability spam) (reason: 550 This message rated as spam) (reason: 554-gatekeeper3.spacenet.de) (reason: 550 5.1.1 : Recipient address rejected: User unknown) ----- Transcript of session follows ----- ... while talking to emig.freenet.de.: >>> DATA >> DATA >> DATA >> DATA >> DATA ,... Deferred: 451 Temporary failure, please try again later. ... while talking to smtp-01.tld.t-online.de.: >> DATA >> DATA : Recipient address rejected: User unknown 550 5.1.1 ... User unknown >> MAIL From: SIZE=3064 ... Deferred: 421 4.7.0 [TSS04] Messages from 83.138.65.30 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes