Outlook email addresses

[Malcolmlw]

Problems sending email to outlook addresses  See below

<g***************@outlook.com>: host outlook-com.olc.protection.outlook.com[52.101.10.7] said: 550 5.7.1 Unfortunately, messages from [185.151.44.36] 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=11BCDD18A9270C02] [BN3PEPF0000B06E.namprd21.prod.outlook.com 2026-02-24T20:31:48.780Z 08DE6E8C5B58672A] (in reply to MAIL FROM command)

Mod note: Email removed from public view

[gg30340]

You need to remove the email address from your post. It us against forum rules and as this is a public forum spammers may harvest and use that address.

[Peter_W · Accepted solution]

Good morning @Malcolmlw.

I've checked this with the team at our end, and they've recommended it would be best to report this to our email support team directly. 

You can find all the details you need on how to reach out to them here:

Fix email | BT Help

Peter