Question Spam???

[klamort]

Server operating system version

CentOS Linux 7.9.2009 (Core)

Plesk version and microupdate number

Plesk Obsidian 18.0.58

Hello, I am receiving a few hunderts of post every day like this, how can I get rid of them. Thanks.

Undelivered Mail Returned to Sender
27 févr. 2024 08:47

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This is the mail system at host awesome-borg.57-129-22-98.plesk.page.I'm sorry to have to inform you that your message could notbe delivered to one or more recipients. It's attached below.For further assistance, please send mail to postmaster.If you do so, please include this problem report. You candelete your own text from the attached returned message. The mail system<[email protected]>: host gmail-smtp-in.l.google.com[64.233.167.26] said: 550-5.7.1 [145.239.130.4 18] Gmail has detected that this message is likely 550-5.7.1 suspicious due to the very low reputation of the sending IP address. 550-5.7.1 To best protect our users from spam, the message has been blocked. 550-5.7.1 For more information, go to 550 5.7.1 Why has Gmail blocked my messages? - Gmail Help r13-20020a0560001b8d00b0033d1ee77867si3554202wru.338 - gsmtp (in reply to end of DATA command)
Return-Path: <[email protected]>
Received: by awesome-borg.57-129-22-98.plesk.page (Postfix, from userid 10001) id CD5163FE6C59; Tue, 27 Feb 2024 08:47:19 +0100 (CET)
Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=motards.be; s=default; t=1709020039; bh=+t0Da2JdgR8BMOcsJBOAx6nwoZP/9kog/cCyr45A1Eo=; h=To:Subject:From; b=ceTBuEm1h/WRqR3ESUTWwMgDCRYSdyZvx3ZV9EfK7ME+DxZvkJqOkiGnsRiLq0aK7 SPW/tAqKoj+l4N8IxvK+8MnnEf+tm1qdw7foK8cpobZjD5zN57AQn5pd0Ktt1/wA5v UyG+1ihBSN2BxWU+M4beNADELYBDfrwlJIFN1e0E=
To: [email protected] <[email protected]>
Subject: Copy of: Surprise! $74,000 Ready for Withdrawal—Claim Yours Now!
Date: 2024-02-27T07:47:19Z
From: Motards.be <[email protected]>
Reply-To: MatthewPax <[email protected]>
Message-Id: <[email protected]>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
X-Ppp-Message-Id: <[email protected]>
X-Ppp-Vhost: motards.be
This is a copy of the following message you sent to Get In Touch via Motards.beAttention Please: $74,000 Earned—Withdrawal Instructions Await! Online $9,000,000

 

[Peter Debik]

Is the domain "motards.be" hosted on your server? Then a malware is likely sending spam from it. If this is not the case, someone else is sending spam using your name as a sender address. You should make sure that motards.be has SPF, DKIM and DMARC setup in your nameserver, so that recipients can tell that the mails are not sent by your server.