le mail che invio con allegati in pdf vengono rifiutate, quelle con altri allegati vengono consegnate

Question

Buongiorno,

le mail che invio con allegato un file pdf vengono rifiutate dal server destinatario, mentre le mail con qualsiasi altro tipo di allegato vengono recapitate correttamente,

nell'avviso di mancato recapito la mia mail sembra sia segnalata come spam dai filtri, per cortesia rimuovete la mia mail dal filtro antispam.

a seguire l'avviso di mancato recapito:

Non ho recapitato il tuo messaggio perché il provider e-mail del destinatario lo ha rifiutato.

Informazioni di diagnostica per gli amministratori:

Server di generazione: PR3P192MB0745.EURP192.PROD.OUTLOOK.COM

e*********@live.it
Remote server returned '550 5.7.520 Message blocked because it contains content identified as spam. AS(4810)'

Intestazioni originali del messaggio:

Received: from AS8P192MB1923.EURP192.PROD.OUTLOOK.COM (2603:10a6:20b:53d::14)
 by PR3P192MB0745.EURP192.PROD.OUTLOOK.COM (2603:10a6:102:45::15) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6954.28; Mon, 6 Nov
 2023 17:19:57 +0000
Received: from AS8P192MB1923.EURP192.PROD.OUTLOOK.COM
 ([fe80::ad4:dfd3:e63c:df6f]) by AS8P192MB1923.EURP192.PROD.OUTLOOK.COM
 ([fe80::ad4:dfd3:e63c:df6f%4]) with mapi id 15.20.6954.027; Mon, 6 Nov 2023
 17:19:57 +0000
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Maurizio Leali <m********@live.it>
To: "e**************@live.it" <e****************@live.it>
Subject: test
Thread-Topic: test
Thread-Index: AQHaENUax3gt1z6dmkG/q2OCZfZgVQ==
Importance: high
X-Priority: 1
Date: Mon, 6 Nov 2023 17:19:57 +0000
Message-ID: <******@AS8P192MB1923.EURP192.PROD.OUTLOOK.COM>
Accept-Language: it-IT, en-US
Content-Language: it-IT
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator: <******@AS8P192MB1923.EURP192.PROD.OUTLOOK.COM>
msip_labels:
MIME-Version: 1.0
X-TMN: [wPp2YxLv6cFxuQJKHSXG5HJlxiH2RucL]
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: AS8P192MB1923:EE_|PR3P192MB0745:EE_
Return-Path: m********@live.it
X-MS-Office365-Filtering-Correlation-Id: 3d5f529f-fb56-47e6-5d3c-08dbdeec99db
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info:
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
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0:
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Answer 1

Hello Maurizio L ! My name is Jeremy and I’m happy to help you with your question.

I’m sorry to hear that you are being affected by this issue.

There has been a large influx of customers reaching out to the forums today stating that emails with attachments are not being sent or are being rejected.

Although I do not see it showing as a known issue with the service at this very moment, based on the number of customers reaching out there seems to be a widespread issue.

Please report the issue using the steps listed on the website below.

https://support.microsoft.com/help/2b102d44-b43f-4dd2-9ff4-23cf144cfb11#:~:text=In%20the%20Outlook%20mobile%20app,Then%20choose%20Send%20Feedback.

Thank you so much for your patience and the time it takes you to fill out the bug report.

I have full faith that this will be a temporary issue.

Thank you for reaching out to the community forums and have a good rest of your day.

Regards,