Why is postmaster upalne to sens my e-mail to a balie e-mail?

Question

Having written many emails to Air France to retrieve a lost case, i get postmaster replayom saying that it’s undeliverable and the that this e-mail is not monitored.

can anyone explain this to me please?

i even resent the e-mail, thinking its too long as i even put images in, so i split it into 2 emails but, still the same issue,

Answer 1

Hello

Can you share the "complete" content of the bounce email, exactly as it was in that email?

Answer 2

******@outlook.com (or similar postmaster addresses) is an automated system address, not a real support mailbox. Messages from it mean Outlook or the receiving system could not deliver the email that was sent.

In this situation:

1. The postmaster reply is a Non-Delivery Report (NDR)
   • Properly authenticated messages from ******@outlook.com, postmaster@microsoft.com, or service.microsoft.com are legitimate automated reports.
   • They indicate the message could not be delivered to one or more recipients, not that postmaster is the one “sending” the message on the user’s behalf.
2. The address “is not monitored”
   • The postmaster message itself is informational only and not a support channel.
   • Replies to that postmaster email are not read by a person and will not reach Air France.
3. How to find the real reason the email to Air France failed
   • Open the postmaster/NDR message.
   • Scroll down and look for a section like “Diagnostic information for administrators.”
   • That section contains the actual SMTP error and reason (for example: wrong address, mailbox doesn’t exist, message rejected, attachment too large, etc.).
4. Common causes and what to try
   • Wrong or outdated email address:
     • Create a new message, delete the Air France address from the To field, and remove any auto-complete entry for that address.
     • Type the full address again exactly as shown on the Air France website and resend.
   • Attachment too large:
     • If the email has large images or files, the total size may exceed limits (for example, 10 MB or more depending on the system).
     • Reduce attachment size or upload files to a cloud service such as OneDrive and send a sharing link instead.
   • Recipient-side rules/forwarding:
     • If the address is actually a forwarding alias or shared mailbox at Air France, their internal rules or forwarding settings might be broken. In that case, use an alternative contact method (web form, phone, or another published email address) and let them know their mailbox is rejecting messages.
5. Confirm the sender side is not blocking or filtering
   • In Outlook.com/Outlook on the web, check that the Air France address/domain is not on the blocked senders list (Settings → Mail/Options → Blocked senders or Block and allow).

If the NDR’s diagnostic text shows a specific SMTP error code (for example, 550 or 553, or “relay prohibited”), that code comes from the receiving or intermediate server and indicates why the message was rejected. In many cases, only the mailbox owner or the receiving organization (Air France) can fix issues on their side.

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References:

• Failed delivery messages from the postmaster at outlook.com, microsoft.com, or service.microsoft.com
• Where are my email messages or calendar events in Mail and Calendar for Windows 10?
• Message Trace FAQ in Exchange Online
• I receive a 550, 553, or relay-prohibited error when sending email messages