Emails to outlook.com rejected

[peterkay]

Any emails I send to an outlook.com address are rejected with the following message.  The quoted IP address is NOT my broadband connection. I phoned support but after some delay and checking they gave a vague assurance that they were aware of email problems and it may be resolved by Mon 23 Sep at 16:00. I cannot see either my or the listed IP address and any spam blacklists.  Has anyone got any advice or explanation for this issue?

Thanks

Peter

>>>>>>>>>>>>>

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: <removed>

    host outlook-com.olc.protection.outlook.com [52.101.8.43]

    SMTP error from remote mail server after pipelined sending data block:

    550 5.7.1 Unfortunately, messages from [79.171.34.146] 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 http://mail.live.com/mail/troubleshooting.aspx#errors. [Name=Protocol Filter Agent][AGT=PFA][MxId=11B9A3770DDBDA87] [DS1PEPF00017090.namprd03.prod.outlook.com 2024-09-21T17:25:19.015Z 08DCD1BB94C92DC4]

[Daniel_Et]

Hi @peterkay, thank you for your post.

We're sorry to hear about the problem you're having 😔

If, by any chance, it's not been resolved by 4pm today, please let us know and we can look into it for you further.

Regards,
Daniel

[peterkay]

I have just sent a test message which has gone through and has not been rejected.

It's the lack of information and acknowledgement that there was an issue that was the problem.

Regard

Peter

[David_Bn]

Sorry our team were not able to offer more information @peterkay.

Do please however advise us if the issue re-emerges and we'll be on hand to ensure this is resolved for you, and hopefully with more details available.

Thanks,

David_Bn