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mx.google.com rejected your message to the following email addresses:

vignesh mahadevan 0 Reputation points
2024-04-08T15:46:46.4266667+00:00

mx.google.com rejected your message to the following email addresses:

[vignesh mahadevan (@gmail.com)] Your message couldn't be delivered because the recipient's email server (outside Office 365) suspected that your message was spam. To fix this, try to modify your message, or change how you're sending the message, using the guidance in this article: E-mailing Best Practices for Senders. Then resend your message. If you continue to experience the problem, contact the recipient by some other means (by phone, for example) and ask them to ask their email admin to add your email address or your domain name (the text after the "@" symbol in your email address) to their allowed senders list.

For Email Admins When Office 365 tried to send the message to the next email server outside of Office 365 the external email server returned the error below. This indicates the recipient's email server (or their email filtering service) suspected the sender's message is spam. If the sender isn't able to fix the problem by modifying their message then contact the recipient's email admin and ask them to add your domain name, or the sender's email address, to their list of allowed senders.

While the sender may be able to alter the message contents to fix this, it's likely that only the recipient's email admin can fix this problem. Unfortunately, Office 365 support is unlikely to be able to help fix these kinds of externally reported errors.

 

mx.google.com gave this error: Remote server returned message detected as spam -> 550 5.7.1 [2a01:111:f400:fe1f::81f 19] Gmail has detected that this message;is likely suspicious due to the very low reputation of the sending;domain. To best protect our users from spam, the message has been;blocked. For more information, go to; https://support.google.com/mail/answer/188131 l12-20020a05622a050c00b00434504d2717si2252247qtx.104 - gsmtp

Diagnostic information for administrators:

Generating server: DU0P250MB0507.EURP250.PROD.OUTLOOK.COM

[@gmail.com] mx.google.com Remote server returned '550 5.7.350 Remote server returned message detected as spam -> 550 5.7.1 [2a01:111:f400:fe1f::81f 19] Gmail has detected that this message;is likely suspicious due to the very low reputation of the sending;domain. To best protect our users from spam, the message has been;blocked. For more information, go to; https://support.google.com/mail/answer/188131 l12-20020a05622a050c00b00434504d2717si2252247qtx.104 - gsmtp'

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 ([fe80::609:a40b:80e4:4969%5]) with mapi id 15.20.7409.042; Mon, 8 Apr 2024

 06:58:56 +0000

From: vignesh mahadevan <

To: vignesh mahadevan <

Subject: Re: test

Thread-Topic: test

Thread-Index: AQHaiYIyeciNC5Okgk2qEv6i/RxF9LFd8WhM

Date: Mon, 8 Apr 2024 06:58:56 +0000

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  1. SokiGuo-MSFT 27,736 Reputation points Microsoft Vendor
    2024-04-09T02:19:33.91+00:00

    Hi @vignesh mahadevan

    Welcome to our forum!

    According to your description, the email could not be delivered because the recipient's email server suspected it was spam.

    For error code 550 5.7.1, you can try the following steps to resolve the issue:

    • Review the content of your email and make sure it complies with best practices for sending emails. Avoid using suspicious or spam-like language, excessive links, or attachments that could trigger spam filters.
    • Contact the recipient by other means, (such as a phone call) and ask them to add your email address or domain name to the list of allowed senders.
    • If none of the previous steps apply or solve your issue, contact the recipient's email administrator. Their email admin might need to reconfigure the recipient's mailbox so it accepts email from you.

    For more details, you can refer to: Fix NDR error "550 5.7.1" in Exchange Online.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    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.

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