550 5.4.1 Recipient address rejected

Question

Bom dia,

Preciso de uma ajuda, pois minha empresa nao consegue se comunicar com as contas outlook coorporativas, o que preciso fazer? tenho SPD, DMARC E DKIM, alem do certificado e uma otima configuração de segurança, antes enviava e agora parou.

---- Mensagem encaminhada ----- De: "Mail Delivery System" ******@mail.scmrb.org.br Para: "compras inac" ******@scmrb.org.br Enviadas: Quinta-feira, 11 de abril de 2024 8:56:05 Assunto: Undelivered Mail Returned to Sender This is the mail system at host mail.scmrb.org.br. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message.                    The mail system ******@draeger.com: host     draeger.mail.protection.outlook.com[52.101.73.19] said: 550 5.4.1 Recipient     address rejected: Access denied. [AMS1EPF0000004E.eurprd04.prod.outlook.com     2024-04-11T11:56:03.330Z 08DC545115FF1968] (in reply to RCPT TO command)

Answer 1

Hi @Rafael Leão ,

Based on my research on the error "550 5.4.1 Recipient address rejected", i found an official article mentioned some solutions to resolve it, please check it: Fix NDR error "550 5.4.1" in Exchange Online.

Hope to help you!

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