Email server issue

Peter_1985 2,526 Reputation points
2022-04-29T08:21:50.05+00:00

Hi,
Email server is frequently forbidden due to the issue below. How to avoid the issue?

Remote server replied: 550 5.7.1 Service unavailable, Client host [?.?.?.?] blocked using Spamhaus. To request removal from this list see https://www.spamhaus.org/query/ip/?.?.?.? AS(1440) [VE1EUR02FT019.eop-EUR02.prod.protection.outlook.com]

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
12,170 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,728 questions
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  1. T. Kujala 8,706 Reputation points
    2022-04-29T10:22:56.11+00:00