Your message wasn't delivered because the recipient's email provider rejected it.

Code Test 116

I registered and created a new domain on Office 365 to experience O365 E3 trial version then created an application in Dot Net to send emails using graph API, both to same and different (gmail etc.) domains.
On coding side I don't see any error being produced, however on mail box side immediately I receive an email saying:

Delivery has failed to these recipients or groups:
******@something .onmicrosoft.com
Your message wasn't delivered because the recipient's email provider rejected it.

I am able to send emails from mailbox, manually by visiting https://outlook.office.com/
I am Office 365 global admin.

CarlZhao-MSFT 36,976 Reputation points

2022-02-23T06:04:46.287+00:00

Are you sending too many emails in a short period of time?
Joyce Shen - MSFT 16,641 Reputation points

2022-03-01T07:03:35.02+00:00

Hi @Code Test

Have you checked the suggestions below? Any further update?

If an Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
Harie 21 Reputation points

2022-03-02T09:13:27.3+00:00

Check your SPF on your cpanel domain. Delete All spf record and make only one spf record like this :

Name : yourdomain.com
Time : 3600
Type : TXT
Record : v=spf1 include:spf.protection.outlook.com -all
Joyce Shen - MSFT 16,641 Reputation points

2022-03-04T07:02:22.613+00:00

Hi @Code Test

I am writing to see how everything is going on with this thread. If you still have further concern on this, please feel free to let us know.

If an Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
P 000 16 Reputation points

2022-04-23T03:59:35.373+00:00

Am having the same problem, what do I do
P 000 16 Reputation points

2022-04-23T03:59:46.603+00:00

Am having the same problem, what do I do
sushant gawade 11 Reputation points

2022-11-11T08:22:48.81+00:00

Hi

Every time I try to send mail manually from ofice 365 outlook web I am getting following error

Your message wasn't delivered because the recipient's email provider rejected it.

Please provide a solution

Thank you!
Regards
Sushant
sushant gawade 11 Reputation points

2022-11-11T08:24:39.807+00:00

i CREATED THIS MAIL FEW DAYS BACK
sushant gawade 11 Reputation points

2022-11-11T08:43:33.603+00:00

Remote Server returned '550 5.7.501 Service unavailable.
sushant gawade 11 Reputation points

2022-11-11T09:02:26.247+00:00

not able to see threats management in Office365 Security and Compliance Dashboard

We're in the final stage of retiring the Office 365 Security & Compliance Center. All solutions and features will soon be completely migrated to the
Lucas Pitcher 0 Reputation points

2023-06-22T08:01:45.6066667+00:00

I am also having the same problem; Outlook/Hotmail emails are being rejected even by my own Hotmail account - for instance when I try to send an image to myself for access on another device.
I regularly receive notifiation that "Your message wasn't delivered because the recipient's email provider rejected it", when sending new emails or even forwarding email, not just with images but with text only messages.
This occurs regularly when using my iPhone to send Hotmail/Outlook emails, even with VPN switched on.
What's the solution?
Vmind 0 Reputation points

2023-07-31T04:16:15.1766667+00:00

I am having the same problem, I am not able to send and receive mail from custom domain.
TRINH TRIEU 5 Reputation points

2023-10-01T05:22:23.7766667+00:00

I got the same problem when I created a business email account on Microsoft Business.

The reason is that I manually deleted the custom email server's connection to my domain's DNS on Godaddy (my website server).

Please check your domain status at the https://admin.microsoft.com/#/Domains
TRINH TRIEU 5 Reputation points

2023-10-01T05:29:18.7033333+00:00

I got the same problem when I created a business email account on Email Business Service.

The reason is that I manually deleted the custom email server's connection to my domain's DNS on my website server.

Please Re-check the email DNS again at: https://admin.microsoft.com/#/Domains
José de Pinho 0 Reputation points

2023-11-06T17:07:17.3433333+00:00

Hi, this started happening to me today. what is the workaround. I tested and its all the sent emails that have attachments that don´t go through. Why is it happening? Please advise.
Cathy Williams 1 Reputation point

2023-11-06T17:16:31.06+00:00

Your message wasn't delivered because the recipient's email provider rejected it. Suddenly happening again
Lucas Oliveira 0 Reputation points

2023-11-06T18:44:38.42+00:00

Am having the same problem, what do I do
Kat Carroll 0 Reputation points

2023-11-06T20:47:56.7433333+00:00

Just started having this issue today with my outlook.com email account. Seems to be with emails I try to send with attachments.

13 answers

Charles Gomes 6 Reputation points

2022-03-08T14:53:11.773+00:00

I have similar issue.

Some of my email returns like this:
Diagnostic information for administrators:

Generating server: CWXP123MB5396.GBRP123.PROD.OUTLOOK.COM
HRasheed@gibbs-gillespie.co.uk
Remote Server returned '550 5.7.520 Message blocked because it contains content identified as spam. AS(4810)'
Original message headers:

Received: from LO2P123MB5478.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:231::9)
by CWXP123MB5396.GBRP123.PROD.OUTLOOK.COM (2603:10a6:400:13b::5) with
Microsoft SMTP Server (version=TLS1_2,
cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5038.14; Tue, 8 Mar
2022 14:49:07 +0000
Received: from LO2P123MB5478.GBRP123.PROD.OUTLOOK.COM
([fe80::f10c:8a06:ea65:dd6c]) by LO2P123MB5478.GBRP123.PROD.OUTLOOK.COM
([fe80::f10c:8a06:ea65:dd6c%9]) with mapi id 15.20.5038.027; Tue, 8 Mar 2022
14:49:07 +0000
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Charles Gomes <jsserviceslondon@Karima ben .com>
To: Haffeeza Rasheed <HRasheed@gibbs-gillespie.co.uk>
Subject: Re: 72 Lovelace House - Issue Reported - PART APPROVAL ON THE QUOTE
Thread-Topic: 72 Lovelace House - Issue Reported - PART APPROVAL ON THE QUOTE
Thread-Index: Adgvqwq9viyYOGQZQvqUhMV6XPdurQDIbemd
X-MS-Exchange-MessageSentRepresentingType: 1
Date: Tue, 8 Mar 2022 14:49:07 +0000
Message-ID: <f097420ea86840c5ac9177725fe3b055LO2P123MB54789738545E5A06D2A8E472D0099@LO2P123MB5478.GBRP123.PROD.OUTLOOK.COM>
References: <LNXP265MB1721C87FB8F4CFA31A58148FD8059@LNXP265MB1721.GBRP265.PROD.OUTLOOK.COM>
In-Reply-To: <LNXP265MB1721C87FB8F4CFA31A58148FD8059@LNXP265MB1721.GBRP265.PROD.OUTLOOK.COM>
Accept-Language: en-GB, en-US
Content-Language: en-GB
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator: <f097420ea86840c5ac9177725fe3b055LO2P123MB54789738545E5A06D2A8E472D0099@LO2P123MB5478.GBRP123.PROD.OUTLOOK.COM>
x-tmn: [wY7bfaiVDFTY2x8pUDTlone+Q7B1yGNJ]
X-MS-Office365-Filtering-Correlation-Id: 24ec4e40-cddb-4703-38df-08da0112cc64
x-ms-traffictypediagnostic:
CWXP123MB4149:EE_|LO2P123MB5478:EE_|CWXP123MB5396:EE_
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info:
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
suggested_attachment_session_id: 986f2746-e910-d231-dd42-7ef82efc43d2
MIME-Version: 1.0
X-MS-PublicTrafficType: Email
Return-Path: jsserviceslondon@Karima ben .com
X-MS-Office365-Filtering-Correlation-Id-Prvs:
b91f327c-a2ac-4658-eb77-08da00e3e95a
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0:
rHSIUizfq8X2XAILnnPJzuGkL0vQt9McyndCLWZMhZU19oueMinExL44Q1vGm4VPi3LOgRiMlyLLTphDABC6MGFsONrONY9VbXP82ya0QhxYscQA+uxva1EfbSttAweelFQlSQHPZQ9KeHgiNGyDxdq94pJVKYpk9B1OTCZpJDINIWxxecwA1YuHEUbycdWba6zB/jEGI5EuG0klL8wBp3wM/73VMr61j46Aj2tFA+TJ4MDRpz5N4WR9ovZEFbxhRHSvpWO6df5r0B010Ri1eo3nbjOc409+uMVgIyuDIrqsgpGUtkHwI8pVV168RSdxeQwrG4zjRTAfdEQSArFa721QFhxZXYtZ5Plf5YEA91kmR8R1wjPBj75N0DVG/aJKQSJeWaJSY+nNZHHgbZ6AR8rQEwe0Zv1BGnnpVvjE2mCdkHpH+9zdrfshmf4PAVxJMLXEmNZHSGWIAmNqvVCiVWdfFALB2IZ+H49IDOemO9Kh7M0l94qTiV2JBt07m8cH6PZe2GoCQRWUowESYW4gVdesHWyqEFmG+ActqKocu/qBQiIaDnUCokCPQZmc3Nim7WY9EGugVsoKp10nzgjok53OyUEQ8owzD/2KebmRoiw+5A8RaXzCpssU65FffaeAFBVNLwrRnCjQ6G7z6pvHbQsFPZCkdSLM5DmS25yAn8gZGjt32oReV4X6ybclnF3ZqgLzFI+B1mXVKKP3NpDK2kLWglJxA6EBvmm9H+v6+rYgpvUnxBabi7ExaSJJ7MyCk4h5KkfAXjljKQULGAcJYZv/+dwTgYE4vzfte8bcSkWRnbiwXJfJ1NmBhKlqDA9T/PRktOfMalVrBT5K7YMV6aeNeEx9tgWn2D9+xumyXcWqGYIphrTzv2ueA/wVbWojlVzXhE2cDa7fPjEaHNLsOAyAsucmO6spcgd5heWuwbfiZ/Phuh8PbafADKcs6Y2x
Please sign in to rate this answer.

1 person found this answer helpful.

0 comments No comments
Sign in to comment
don pedro solo 6 Reputation points

2022-11-02T04:38:25.473+00:00

Q7B1yGNJ]
X-MS-Office365-Filtering-Correlation-Id: 24ec4e40-cddb-4703-38df-08da0112cc64
x-ms-traffictypediagnostic:
CWXP123MB4149:EE_|LO2P123MB5478:EE_|CWXP123MB5396:EE_
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info:
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
suggested_attachment_session_id: 986f2746-e910-d231-dd42-7ef82efc43d2
MIME-Version: 1.0
Please sign in to rate this answer.

1 person found this answer helpful.

0 comments No comments
Sign in to comment
Jon Higbie 6 Reputation points

2022-11-02T23:09:38.83+00:00

NONE OF THESE RESPONSES ARE ANSWERS OR SOLVE THE PROBLEM.

Most of them are examples of the same or similar problem.

From my investigation the root cause is some conflict with Microsoft, GoDaddy and encryption. MS and GD are doing NOTHING to address this. Just staying silent and collecting our money. MICROSOFT + GODADDY SUCK! I will never set up another domain with GoDaddy / Microsoft. I'll stick with Google. I've never had problems like this with them.
Please sign in to rate this answer.

1 person found this answer helpful.

0 comments No comments
Sign in to comment
YuiZ 5 Reputation points

2023-04-10T03:56:12.6566667+00:00

Same issue here, sent my emails on April 7th and got the undelivered notice on April 8th...
Please sign in to rate this answer.

1 person found this answer helpful.
Jasmine Liang 0 Reputation points

2023-04-10T13:31:44.4433333+00:00

Similar problem I'm encountering, has it been resolved yet? Thank you

Rachael Lynch 5 Reputation points

2023-04-10T16:29:04.7333333+00:00

The people I've sent emails to have since received them, so I suspect the issue is fixed though I don't think there's been any communication about it.

LT 0 Reputation points

2023-04-10T18:16:34.8666667+00:00

I've been having this problem, too. Any word on whether it's resolved? I'm having trouble even finding where to try to change my SMTP settings (and frankly, I'm in over my head messing with that stuff!).
Sign in to comment

Keith R 0

Delivery has failed to these recipients or groups:


Your message wasn't delivered because the recipient's email provider rejected it.








Diagnostic information for administrators:

Generating server: DM4PR19MB6416.namprd19.prod.outlook.com

DME.Billing@247mbs.com
Remote server returned '550 5.7.705 Service unavailable. Access denied, tenant has exceeded threshold. For more information please go to http://go.microsoft.com/fwlink/?LinkId=526653 S(7136) [SN7PR19MB6637.namprd19.prod.outlook.com 2023-12-11T18:41:32.508Z 08DBF9CBAF0733C6]'

Original message headers:

Received: from DM4PR19MB6416.namprd19.prod.outlook.com
 ([fe80::f831:4c01:f27c:bbcd]) by DM4PR19MB6416.namprd19.prod.outlook.com
 ([fe80::f831:4c01:f27c:bbcd%4]) with mapi id 15.20.7068.031; Mon, 11 Dec 2023
 18:41:32 +0000
MIME-Version: 1.0
Content-Type: text/plain
Date: Mon, 11 Dec 2023 18:41:32 +0000
Message-ID:
	<DM4PR19MB64163102B0CE4BCC6CBA6395C48FA@DM4PR19MB6416.namprd19.prod.outlook.com>
Subject: Fw: Proof of Delivery Required