non-delivery of outgoing email

[MohamedEL-ELAIMY]

Three days ago I started getting a notifications that my outgoing mail was not delivered and that they would not try again to send it; followed by several diagnostic information as follows (copied-pasted):


Delivery has failed to these recipients or groups:

*** Email address is removed for privacy ***
The email system had a problem processing this message. It won't try to deliver this message again.











Diagnostic information for administrators:

Generating server: DB8PR09MB3897.eurprd09.prod.outlook.com

*** Email address is removed for privacy ***
Remote Server returned '550 5.6.2 STOREDRV.Submit; subscription is disabled'

Original message headers:

Received: from DB8PR09MB3897.eurprd09.prod.outlook.com
([fe80::2941:bd59:755c:bedd]) by DB8PR09MB3897.eurprd09.prod.outlook.com
([fe80::2941:bd59:755c:bedd%7]) with mapi id 15.20.2408.024; Mon, 4 Nov 2019
14:53:53 +0000
MIME-Version: 1.0
Content-Type: text/plain
Date: Mon, 4 Nov 2019 14:53:53 +0000
Message-ID:
<*** Email address is removed for privacy ***>
Subject: Fw: Re: Best wishes and future job suggestion


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