Subject: Undelivered Mail Returned to Sender

From: [email-masked] (Mail Delivery System)
Date: Thu, 21 May 2026 16:04:18 +0800 (HKT)

This is the mail system at host smtpbbmailout.smartone.com.

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                   The mail system

<[email-masked]>: host mta6.am0.yahoodns.net[67.195.204.74] said:
    421 4.7.0 [TSS04] Messages from 202.140.76.164 temporarily deferred due to
    unexpected volume or user complaints - 4.16.55.1; see
    https://postmaster.yahooinc.com/error-codes (in reply to MAIL FROM command)

Subject: DELIVERABILITY-TEST-F2FCF931
From: Test <[email-masked]>
To: [email-masked]
Date: Wed, 20 May 2026 06:57:48 +0000

Hello Martinsmorris54,

Please click this link: 

Reference: REF-A56D9898

Thank you,
Yahoo Team