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mail:microsoft_ip-sperre_aufheben [2023/05/22 10:35] – ↷ Seite von misc:microsoft_ip-sperre_aufheben nach mail:microsoft_ip-sperre_aufheben verschoben adminmail:microsoft_ip-sperre_aufheben [2026/10/06 13:00] (aktuell) – [Kontakt aufnehmen] 195.16.228.206
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 You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [SG2APC01FT042.eop-APC01.prod.protection.outlook.com] You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [SG2APC01FT042.eop-APC01.prod.protection.outlook.com]
 </code> </code>
 +  * Der Umfang der Sperre lässt sich anhand des Fehler-Codes erkennen:
 +    * S3140: IP ist vollständig blockiert,
 +    * S3150: IP ist gedrosselt.
   * Über den [[https://sendersupport.olc.protection.outlook.com/snds/|Smart Network Data Service]] (SNDS) kannst du den Status deiner IP-Adressen einsehen. Eine vorherige Anmeldung ist dafür notwendig.   * Über den [[https://sendersupport.olc.protection.outlook.com/snds/|Smart Network Data Service]] (SNDS) kannst du den Status deiner IP-Adressen einsehen. Eine vorherige Anmeldung ist dafür notwendig.
  
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   * https://www.internet.nl/   * https://www.internet.nl/
   * https://talosintelligence.com/reputation_center   * https://talosintelligence.com/reputation_center
 +  * https://www.suped.com/tools/email-tester
  
-===== Kontakt aufnehmen =====+Delisting request — IP 194.164.48.221 blocked by Outlook.com/Hotmail (S3150)
  
-Kontakt kann über [[https://sender.office.com/|dieses Formular]] aufgenommen werden. In der Regel wird Microsoft die Entsperrung bei der ersten Anfrage ablehnen. Deine mögliche Antwort darauf könnte so aussehen: + Hello,
-<code> +
-Hello,+
  
 +  I would like to request review/delisting of IP address 194.164.48.221 from the Outlook.com/Hotmail block
 +  list.
  
-I would like to ask to have 0.0.0.0 considered manually delisted +  Server details: 
-from the outlook.com blocklist.+  - Sending IP: 194.164.48.221 
 +  - Hostname (PTR and forward DNS match): web02.kohlweiss.domains 
 +  - Mail software: Postfix on Linux (Plesk-managed)
  
-According to the IP status page with Smart Network Data Services +  Rejection observed: 
-(SNDS), our mail server with the IP address of 0.0.0.0 is +  On 2026-10-06 at 08:46:19 UTC, a legitimate message was rejected during the MAIL FROM phase with:
-blocked due to user complaints or other evidence of spamming.+
  
-In fact the user complaint rate is below 0.1 % for all the days that we +  550 5.7.1 Unfortunately, messages from [194.164.48.221] weren't sent. Please contact your Internet service 
-can retrieve data for (have a look at the attached csv export from +  provider since part of their network is on our block list (S3150). You can also refer your provider to 
-SNDS).+  http://mail.live.com/mail/troubleshooting.aspx#errors. [Name=Protocol Filter 
 +  Agent][AGT=PFA][MxId=11BE461A669B11DA] [MI3PEPF0000855E.eurprd05.prod.outlook.com 2026-10-06T08:46:19.748Z 
 +  08DF230D33EB04E7]
  
-As you can sure examine there was never a report sending to us by you +Checks performed and findings: 
-JMRP.+  - Reviewed the Postfix mail queue: empty, no backlog. 
 +  - Reviewed mail logs for the affected period: normal, low outbound volume. No evidence of a compromised 
 +    mailbox, unauthorized relay use, unusual SASL authentications, or script/webform abuse. 
 +  - Verified PTR record for 194.164.48.221 resolves to web02.kohlweiss.domains, matching the server's forward 
 +    DNS (A record) and its SMTP EHLO name. 
 +  - Implemented and verified SPF, DKIM (2048-bit RSA), and DMARC for the affected sender domain 
 +    (virgolini.com). 
 +  - Confirmed via independent third-party test (mail-tester.com, score 7.9/10) that SPF, DKIM, and DMARC all 
 +    pass, and that this IP is not listed on any of 20 common public blocklists, including Spamhaus SBL, XBL, 
 +    PBL, and CSS.
  
-We do believe, however, that this IP is simply being blocked as a +  Given the very low and normal sending volume, the absence of any abuse indicators, fully compliant 
-consequence of a larger sweep against our service provider.+  authentication, and a clean reputation across all checked blocklists, we believe this IP (or a shared range 
 +  it belongs to) was listed as a result of activity from other senders on the same network, rather than from 
 +  this server. We would appreciate confirmation of what is required for delisting, and whether this is an 
 +  IP-specific listing or a range-level one.
  
-The mail server adheres to all Microsoft Policies when delivering email +  The complete SMTP rejection / NDR is attached below for reference.
-to your mail servers. It's actively monitor with SNDS and JMRP.+
  
-The following technologies are implemented on this server: +  Thank you for your assistance.
-SPF, DKIM, Mail filtering and scanning for Spam for incomming and outgooing +
-mails.+
  
-Additionally, We can offer the following:+  Regards, 
 +  Thomas Kohlweiss
  
-The mail server 0.0.0.0 is not listed on any public blocklist. The 
-mail server can deliver email to every other major service provider. 
- 
-As you see there's no reason to keep up with the blocking. We ask you 
-to unblock 0.0.0.0. 
- 
-Regards, 
-YOUR_NAME 
-</code>