The response from the remote server was:
550 5.1.1 RCP-P1 Domain facebook.com no longer available https://www.facebook.com/postmaster/response_codes?ip=2607:f8b0:4864:20::1029#RCP-P1


---------- Forwarded message ---------
From: Mail Delivery Subsystem <mailer-daemon@googlemail.com>
Date: Wed, Sep 24, 2025, 9:41 AM
Subject: Delivery Status Notification (Failure)
To: <g@xny.io>


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The response from the remote server was:

550 5.1.1 RCP-P1 Domain facebook.com no longer available https://www.facebook.com/postmaster/response_codes?ip=2607:f8b0:4864:20::1029#RCP-P1