Subject: Delivery Status Notification (Failure)

From: Mail Delivery Subsystem <[email-masked]>
Date: Fri, 23 Jan 2026 18:24:55 -0800 (PST)

** Message not delivered **

There was a problem delivering your message to [email-masked]. See the technical details below.

Learn more here: https://support.google.com/mail/?p=ReceivingRate

The response from the remote server was:
450 4.2.1 The user you are trying to contact is receiving mail at a rate that prevents additional messages from being delivered. Please resend your message at a later time. If the user is able to receive mail at that time, your message will be delivered. For more information, go to https://support.google.com/mail/?p=ReceivingRate a640c23a62f3a-b885b707676si345110566b.154 - gsmtp