Solve spam in plesk+windows server -- 2

Hi, i have a windows server 2016 in [login to view URL], with the Plesk Obsidian Version 18.0.30

It seems than I am having some kind of spoofing problem, because my IP is blocked by hotmail and others.

I am receiving on my postmaster account rejections emails, from non-existing accounts.

Like if my account were sending emails as spam.

I have already changed my email´s password but nothing is working.

I am not sure if it´s a DNS problem, spam or WTF problem, but customers cannot send emails as usual because hotmail has blocked my IP.

This is an example of the email I am receiving as part of the rejection:

Recipient: [xxx/hot mail]

Reason: 550 5.7.1 Unfortunately, messages from [[login to view URL]] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to [login to view URL] [[login to view URL]]

Message contents follow:

Received: from [login to view URL] ([[login to view URL]]) by [login to view URL] with

MailEnable ESMTPSA (version=TLS1_2 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384); Thu, 24 Sep 2020 16:26:59 -0300

Received: by [login to view URL] with SMTP id g4so121245edk.0

for <xxx/hot mail>; Thu, 24 Sep 2020 12:26:59 -0700 (PDT)

X-Gm-Message-State: AOAM530ILfyQtueMbVH2O6QYjUeGIFJ/0qWgIfTeZyMtQ3lPCiayYxhC


X-Google-Smtp-Source: ABdhPJxqjav64itkQSkE/98/2lXASz48YJwGlcPlVlbP+h63Iley2VHX4iA9kstwvc5WJUade6ONIijBzBoMrbYBO3k=

X-Received: by 2002:a05:6402:1773:: with SMTP id da19mr328294edb.171.1600975618409;

Thu, 24 Sep 2020 12:26:58 -0700 (PDT)

MIME-Version: 1.0

From: Ariel Lipschutz <ariel/[mydomain].com>

Date: Thu, 24 Sep 2020 16:26:40 -0300

X-Gmail-Original-Message-ID: <CACWUw1FJYgD+o=iFyzoWj5HYvTrQcWmF5HyozWbwWgY6VsrBaw [login to view URL]>

Message-ID: <CACWUw1FJYgD+o=[login to view URL]>

Subject: hola

To: ariellipschutz / [login to view URL]

Content-Type: multipart/alternative; boundary="000000000000078bba05b0142f91"

Another problem to solve, when an account from domain [login to view URL] send an email to another account from the same domain, the email arrive as ***SPAM***

For example [login to view URL] send an email to [login to view URL] and the subject include the ***SPAM*** Tag

Skills: DNS, System Admin, Windows Server, Web Security, Plesk

See more: plesk install spamassassin, plesk spamassassin, open source spam filter, spamassassin settings plesk, plesk emails going to spam, plesk spam filter not working, plesk spam filter settings, spamassassin help, uninstalling plesk windows server 2003, disable plesk windows server 2008, windows server 2008 config plesk, completely uninstall plesk windows server 2008, uninstall plesk windows server 2003, windows server mailenable plesk, plesk windows spam, uninstall plesk windows server 2008, technical support windows server 2003 plesk, windows server 2003 php plesk, windows server plesk dns settings, problem spam plesk server

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