not receiving emails

Hi Leesa Mak

I understand you are having problems with emails from certain business platforms not arriving in Outlook on the web / Outlook.com. I am happy to assist you. Could you please confirm: 

• Are you signing into an @outlook.com/@hotmail.com address (personal/home), or a work/school mailbox (company domain)?  
• For one affected business platform, what is the sender domain, and do they see any bounce/NDR on their side? If they have an NDR, ask them to send you the full text, because it usually indicates why delivery failed and whether the address/domain was rejected.  
• Do the missing messages show up anywhere via Search (All folders) or under Deleted Items > Recover items deleted from this folder?  

I would love to hear from you soon. Have a lovely day!

Follow these steps in Outlook.com / Outlook on the web to troubleshoot missing emails from specific business platforms:

1. Check Junk Email
   • Go to the Junk Email folder.
   • If messages from those platforms are there, right‑click each and choose Mark as not junk to move them back to Inbox and train the filter.
2. Check the Other tab and filters (Focused Inbox)
   • In your Inbox, check both Focused and Other tabs.
   • Select Filter and make sure you are not filtering by Unread, Flagged, or a date range that hides new mail.
3. Check Junk Email settings
   • Select Settings (gear icon) > Mail > Junk email.
   • Under Blocked senders and domains, make sure the business platform addresses or their domains are not listed. If they are, remove them.
   • Under Safe senders and domains, add the email addresses or domains of the business platforms so their messages are not treated as junk.
4. Check rules and forwarding
   • In Settings > Mail, review Rules and remove or disable any rule that moves or deletes new mail from those senders.
   • Check Forwarding and turn it off if mail is being forwarded somewhere else.
5. Check blocked senders from other Outlook clients
   • If Outlook is also used on Windows or Mac, open Outlook there and check Home > Junk > Junk Email Options > Blocked Senders. Remove the business platform addresses or domains if present.
6. Ask the sender to verify delivery
   • If messages still do not arrive and no error is shown to you, ask the business platform or their support to review their sending logs and, if needed, use Microsoft’s guidance in Sender Support in Outlook.com to resolve any delivery or reputation issues on their side.

If none of these steps surface the messages, contact Microsoft support for Outlook.com/Outlook on the web so they can check server‑side filtering and delivery.

References:

• Can't send or receive email in Outlook.com
• Filter junk email and spam in Outlook
• Where are my email messages or calendar events in Mail and Calendar for Windows 10?
• Issues sending and receiving email
• External senders - Troubleshoot email sent to Microsoft 365
• Not receiving emails in a timely manner. - Microsoft Q&A
• Stopped receiving emails on my account. - Microsoft Q&A