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Subject: Mail delivery failed: returning message to sender
Message-Id: <E1w4AXJ-0000000Ajon-3Mlx@sv174.hostsevenplus.com>
Date: Sun, 22 Mar 2026 11:35:37 +0700
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This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
jesselynzhuang86@gmail.com
host gmail-smtp-in.l.google.com [142.251.10.27]
SMTP error from remote mail server after end of data:
550-5.7.26 Your email has been blocked because the sender is unauthenticated.
550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM.
550-5.7.26
550-5.7.26 Authentication results:
550-5.7.26 DKIM = did not pass
550-5.7.26 SPF [casinobetflik-x.com] with ip:
[141.98.17.150] = did not pass
550-5.7.26
550-5.7.26 For instructions on setting up authentication, go to
550 5.7.26 https://support.google.com/mail/answer/81126#authentication d9443c01a7336-2b08350a506si99740465ad.11 - gsmtp
--1774154137-eximdsn-55126835
Content-type: message/delivery-status
Reporting-MTA: dns; sv174.hostsevenplus.com
Action: failed
Final-Recipient: rfc822;jesselynzhuang86@gmail.com
Status: 5.0.0
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.26 Your email has been blocked because the sender is unauthenticated.
550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM.
550-5.7.26
550-5.7.26 Authentication results:
550-5.7.26 DKIM = did not pass
550-5.7.26 SPF [casinobetflik-x.com] with ip: [141.98.17.150] = did not pass
550-5.7.26
550-5.7.26 For instructions on setting up authentication, go to
550 5.7.26 https://support.google.com/mail/answer/81126#authentication d9443c01a7336-2b08350a506si99740465ad.11 - gsmtp
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To: jesselynzhuang86@gmail.com
Subject: Delivered the test 5129811
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Message-Id: <E1w4AXH-0000000AjPg-1PMM@sv174.hostsevenplus.com>
Date: Sun, 22 Mar 2026 11:35:35 +0700
A Test Message From #5129811
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