hotmail blocks email (Sender ID record?)

Appie Thrasher · May 19, 2018

Hi all,
I noticed that a few days ago hotmail blocks email from my server. I looked at the error mail I got back, and if i am correcdt it has something to do with sender id and or spf records.
found this through the error mail:

Why did I receive a "550 command rejected due to Sender ID validation failure." SMTP Non-Delivery Report (NDR) when I attempt to send mail to Outlook.com users?
Outlook.com will not allow delivery of email sent from a domain where the Sender ID record was configured by the domain owner to NOT allow ANY IP to send mail from that domain. Sender ID allows a domain owner to protect domains that aren't intended for sending email in order to help protect their domain from being spoofed. This can be done by publishing a simple TXT record in DNS like the following example (note: the organization would replace example.com with their own domain and or sub-domain name):
example.com IN TXT "v=spf1 -all"
If the domain is repurposed to send mail, the administrator of the DNS record should update the Sender ID record to include the IP address(s) that are authorized to send mail from that domain. Note that updates to your Sender ID record can take up to 48 hours to propagate through the Internet, so it's a good idea to wait 48 hours after making a change to your record before you initiate any new email activities. In addition, Microsoft strongly recommends that you conduct email testing prior to sending live communications to your users/customers.
Click to expand...

This is the error mesaaage I got back:

This is the mail system at host server1.dcs-online.nl.

I'm sorry to have to inform you that your message could not
be 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 can
delete your own text from the attached returned message.

The mail system

<[email protected]>: host eur.olc.protection.outlook.com[104.47.8.33]
said: 550 5.7.1 Unfortunately, messages from [185.10.48.237] weren't sent.
Please contact your Internet service provider since part of their network
is on our block list (S3140). You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors.
[AM5EUR03FT018.eop-EUR03.prod.protection.outlook.com] (in reply to MAIL
FROM command)
Reporting-MTA: dns; server1.dcs-online.nl
X-Postfix-Queue-ID: 7CE10242381
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Sat, 19 May 2018 19:29:43 +0200 (CEST)

Final-Recipient: rfc822; [email protected]
Original-Recipient: rfc822;[email protected]
Action: failed
Status: 5.7.1
Remote-MTA: dns; eur.olc.protection.outlook.com
Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [185.10.48.237]
weren't sent. Please contact your Internet service provider since part of
their network is on our block list (S3140). You can also refer your
provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
[AM5EUR03FT018.eop-EUR03.prod.protection.outlook.com]
Return-Path: <[email protected]>
Received: from localhost (localhost [127.0.0.1])
by server1.dcs-online.nl (Postfix) with ESMTP id 7CE10242381;
Sat, 19 May 2018 19:29:43 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at server1.dcs-online.nl
Received: from server1.dcs-online.nl ([127.0.0.1])
by localhost (server1.dcs-online.nl [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id enz-VcS3utHA; Sat, 19 May 2018 19:29:42 +0200 (CEST)
Received: by server1.dcs-online.nl (Postfix, from userid 5012)
id 44A67242445; Sat, 19 May 2018 19:29:42 +0200 (CEST)
To: Thrasher <[email protected]>
Subject: Your requested copy of the ordered tickets.
X-PHP-Originating-Script: 5012:class.phpmailer.php
Date: Sat, 19 May 2018 17:29:42 +0000
From: [email protected]
Reply-To: Music Fom Hell <[email protected]>
Message-ID: <[email protected]>
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="b1_682938a660bbd3b343003f0cd6001040"
Content-Transfer-Encoding: 8bit
Click to expand...

So I am geussing I need to edit the: DNS SPF record setting on my ISPConfig , but to be honest I dont know how to or what to fill in there..
Could anyone give me a helping hand please?

Appie

till · May 20, 2018

The domain musicfromhell.nl is your domain, right? The SPF of that domain is "v=spf1 mx a ~all" which should be ok when your IP is 185.10.48.237

florian030 · May 20, 2018

I think, your problem is "Please contact your Internet service provider since part of their network is on our block list (S3140)".

Brett Wilton · Jun 11, 2018

We were getting this for one server, you need to get Microsoft to mitigate the issue by filling out the form at this url :-
https://support.microsoft.com/en-us...-us&forceorigin=esmc&ccsid=636642930708442746
They will then investigate and mitigate if your domain is valid. A pain but it happens.

Brett Wilton · Jun 11, 2018

Forgot to say we also for the affected domain set a specific SPF for the valid IP addresses
v=spf1 mx a include:ns1.domain.name include:ns2.domain.name ip4:A.B.C.D ip4:A.B.C.D -all

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hotmail blocks email (Sender ID record?)

Appie Thrasher Member HowtoForge Supporter

till Super Moderator Staff Member ISPConfig Developer

florian030 Well-Known Member HowtoForge Supporter

Brett Wilton Member

Brett Wilton Member

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hotmail blocks email (Sender ID record?)

Appie Thrasher Member HowtoForge Supporter

till Super Moderator Staff Member ISPConfig Developer

florian030 Well-Known Member HowtoForge Supporter

Brett Wilton Member

Brett Wilton Member

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