I am not entirely sure whether this belongs here, so feel free to redirect me in case I posted this to the wrong board. I have a small apache2 webserver (raspberry) registered under the domain thecabbage.eu (currently not online, so don't even try :) but when I woke up today I found about 40 of these email messages in my Inbox:
This is an automatically generated Delivery Status Notification THIS IS A WARNING MESSAGE ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. Delivery to the following recipient has been delayed: email@example.com Message will be retried for 2 more day(s) Technical details of temporary failure: Google tried to deliver your message, but it was rejected by the server for the recipient domain thecabbage.eu by eforward3.registrar-servers.com. [188.8.131.52]. The error that the other server returned was: 450 4.1.1 : Recipient address rejected: unverified address: unknown user: "firstname.lastname@example.org" ----- Original message ----- DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:message-id:date:from:to:subject:content-type:x-cron-env :x-cron-env:x-cron-env:x-cron-env:x-cron-env; bh=k/8GlT8DBvBIJzBOOfw8qR0kGPzj7m9ZR/aj+JOKBhg=; b=Ne2qnI58Cj7zjdBGlw0UqHyGltmAiVc1acnD9Wo207Y9T0w1h3TUWb73E1VZwdJm3j kxxNCrsiKLKUfyUmUJPataGPPOnBR/I0wV8WcQPlxu5vRn2omTracmId4W11hib9EUdK OgHs1NJZw8h1zIBijkz6gDgVKkD6P2PlrtvlCGvqJiPk6N8vSksBshq2ACuDamLktKFq gkWZke9OcfkjpqEri1aiFoenwrsi6uFNLlVRx3BED/Igcn01YqsQiHejlSDMiol4JVFx 1OATY448EinQj2XJJSGW+bNZckjo5S9ErxROI8uff2ic+DONkpSn9BFDYPZ1MqmlwguG zwwQ== X-Received: by 10.205.116.131 with SMTP id fi3mr5153452bkc.58.1365097204482; Thu, 04 Apr 2013 10:40:04 -0700 (PDT) Return-Path: Received: from thecabbage.eu (h081217060242.dyn.cm.kabsi.at. [MY IP]) by mx.google.com with ESMTPS id o2sm6728296bkv.3.2013.04.04.10.40.02 (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 04 Apr 2013 10:40:03 -0700 (PDT) Message-ID: <email@example.com> Received: by thecabbage.eu (sSMTP sendmail emulation); Thu, 04 Apr 2013 19:40:01 +0200 Date: Thu, 04 Apr 2013 19:40:01 +0200 From: root To: root Subject: Cron test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp Content-Type: text/plain; charset=UTF-8 X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: /usr/share/sendmail/sendmail: 899: /usr/share/sendmail/sendmail: /usr/sbin/sendmail-msp: not found
I pretty much have no idea what could cause this Error... I did never send any email to the address, nor do I have sendmail installed (which seems to cause the error). any clues? thanks!