Mail delivery failed: returning message to sender

[Mail Delivery System]

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:

  rachelsrealestate@gmail.com
    host gmail-smtp-in.l.google.com [142.251.116.26]
    SMTP error from remote mail server after pipelined 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 [sourceware.org] with ip: [198.252.100.90] = 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 586e51a60fabf-28c794b5ba5si2279355fac.305 - gsmtp
-------------- next part --------------
An embedded message was scrubbed...
From: "website@rachelandersonrealestate.com" <gdb@sourceware.org>
Subject: New website inquiry - Your account has been inactive for 364 days. To stop removal and claim your balance, please access your account and initiate a withdrawal within 24 hours. For support, join our Telegram group: https://t.me/+Cwf4UD4cuEY4MTI1
Date: Tue, 22 Oct 2024 04:56:41 +0000
Size: 3326
URL: <https://sourceware.org/pipermail/gdb/attachments/20241021/59bdb241/attachment.eml>