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qwertyuiop2's avatar
qwertyuiop2
On our wavelength
25 days ago

Virgin Media blocking email from outlook.com

All emails from our club email account (outlook online) are  being refused by Virgin media for any blueyonder.co.uk email addresses:

Generating server: GV4PR07MB10290.eurprd07.prod.outlook.com

[To] "anyone"@blueyonder.co.uk
Remote server returned '554 5.4.0 < #5.4.300 smtp;550 5.4.300 Message expired -> 421 4.2.0 MXIN618 Temporary SMC Policy Violation detected, retry later ;id=PKb0uoEA0d0pmPKb0uIZQy;sid=PKb0uoEA0d0pm;mta=mx7-prd-nl1-vmo;dt=2025-06-11T14:30:22+02:00;ipsrc=52.101.84.46;>'

Original message headers:

Received: from PA4PR07MB7309.eurprd07.prod.outlook.com (2603:10a6:102:d0::23)
 by GV4PR07MB10290.eurprd07.prod.outlook.com (2603:10a6:150:297::14) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8813.30; Wed, 11 Jun
 2025 10:59:23 +0000
Received: from AS8PR07MB9493.eurprd07.prod.outlook.com (2603:10a6:20b:636::18)
 by PA4PR07MB7309.eurprd07.prod.outlook.com (2603:10a6:102:d0::23) with
 Microsoft SMTP Server (version=TLS1_2,

There's more header information available - I just put the first few lines to show the source.

This has been going on for a week now, and is becoming seriously problematic. It appears to be a virgin media configuration problem.

Can anyone in virgin media resolve this please?

7 Replies

  • Matthew_ML's avatar
    Matthew_ML
    Icon for Forum Team rankForum Team
    24 days ago

    Hey qwertyuiop2, thank you for reaching out and we are sorry to hear about your email issues.

    When you say they are being refused, are you trying to send from the virgin side or are revive these? 

    Are you getting this error message when sending or trying to get the email?

    • qwertyuiop2's avatar
      qwertyuiop2
      On our wavelength
      17 days ago

      As I said, Virgin media is refusing to accept email from Outlook online.

      That means that messages TO blueyonder addresses sent FROM Outlook online are not getting through to the blueyonder mailboxes.

      The Undeliverable message quoted above is returned. 

      • Matthew_ML's avatar
        Matthew_ML
        Icon for Forum Team rankForum Team
        16 days ago

        Is this only happening on Outlook you are finding?

        For example Gmail, icloud emails they work okay?