Emails smtp de voo (depuis smtpout02.voo.be) bloqués par Microsoft vers outlook.com

Message d'erreur lors de l'envoi d'un email vers outlook.com via smtpout02.voo.be

This is the mail system at host smtpout02.voo.be.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]>: hosthotmail-com.olc.protection.outlook.com[52.101.11.11] said: 550 5.7.1Unfortunately, messages from [185.3.161.8] weren't sent. Please contactyour Internet service provider since part of their network is on our blocklist (S3150). You can also refer your provider tohttp://mail.live.com/mail/troubleshooting.aspx#errors. [Name=ProtocolFilter Agent][AGT=PFA][MxId=11BDDBB4D3B56745][SA2PEPF000015C7.namprd03.prod.outlook.com 2026-07-31T16:26:03.212Z08DEEDDA6B889788] (in reply to MAIL FROM command)<?xml version="1.0"?>