Sending, receiving, and organizing email in Outlook.com
Hi Teresa,
Welcome to Microsoft Q&A forum.
I’m sorry you’re dealing with this — it’s really frustrating when familiar emails suddenly stop arriving in your Outlook.com/Hotmail inbox.
Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on reported issues, requests, or ideas only.
To pinpoint what’s happening, the most helpful detail is whether the sender gets a bounce-back / non‑delivery report (NDR). If they do, please send me (via Private Message) either:
- a copy/paste of the “Diagnostic information for administrators” section, or
- a screenshot of that section, plus the SMTP error code you see (for example: 550 5.7.x / 554 5.7.x / 451 4.7.x).
That error code will tell us whether the message is being rejected before it reaches your mailbox (server-level) or if it’s being delivered but filtered/hidden.
Since you have contacted support and receive only "Outlook.com app support" - may I ask that which steps have you taken after clicking on it.
Thank you for your time
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