Outlook Mailbox Rejecting Incoming Emails from External Senders

Question

Outlook Mailbox Rejecting Incoming Emails from External Senders

Lina haddad 0

Hello

I am writing to report a persistent issue with my Outlook account where incoming emails are being rejected and bounced back to senders before reaching my inbox.

Here is a summary of the problem:

Emails sent to my Outlook address bounce back to the sender and never arrive in my inbox
This has been confirmed by multiple senders, including a company's customer service team who told me the email bounces back from their end every time they attempt to send to my address
The issue affects emails from different senders and platforms, including an official government platform
My Gmail account receives emails from the same senders without any issue, which confirms the problem is specific to my Outlook mailbox
I have already checked and ruled out the following: inbox rules, blocked senders, storage quota (plenty of space), and spam/junk folder
My address does not appear on any external blacklist

This has been going on for approximately one month and is causing me serious inconvenience, as I have accounts and pending requests on official platforms that are tied to this email address and I cannot receive any correspondence.

how can solve this?

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Answer 1

Please note that this is the fr-fr forum. We kindly recommend posting your question in French so that more community members can assist you. Alternatively, you may consider posting in the English forum if you prefer to use English. We sincerely appreciate your understanding.

Hi @Lina haddad

Thank you for sharing your concerns.

To ensure I fully understand your situation and provide the most effective assistance, I’ll need a few additional details, such as:

May I know your account type (business/personal)?

Is the affected account hosted and managed on Exchange Online, Exchange On-Premises, or another email hosting service?

When the sender receives a bounce-back message, does it include an NDR (Non-Delivery Report) or any specific error code?

Have there been any recent changes on your account or did this issue start unexpectedly?

Please understand that our initial reply may not always immediately resolve the issue. However, with your help and more detailed information, we can work together to find a solution.

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