Subject: Undeliverable mail: Hallo
From: "Mail Delivery Subsystem" <[email-masked]>
To: <[email-masked]>
Date: Mon, 07 Nov 2022 08:05:11 +0100

Failed to deliver to [email-masked]'
SMTP module(domain cgsto2.mail.tele.net) reports:
 host cgsto2.mail.tele.net says:
 552 [email-masked] account is full (quota exceeded), rejecting