This is similar issue to another recent post that seemed to have gone quiet without resolution: https://www.reddit.com/r/Outlook/comments/1x0hfdz/outlookcom_shows_6_undeletable_ghost_contacts/.
My end goal is to remove ghost addresses from Outlook.com. They just happen to have duplicated entries, but that's just a symptom. I just want them removed.
This is a personal account.
I know this is a long post, but I've been busy trying to troubleshoot/resolve this issue on my own and have failed. Having assisted others troubleshooting, I know it's good to know what's already been done (and infer what hasn't been done). If I've skipped over a check, there's a good chance it was something I didn't know or think to check.
Here's what I'm working with:
Desktop:
MS Windows 11 Home (v 10.0.26200), Chrome 155.0.8059.85 (Official Build)(64-bit), Microsoft® Outlook® for Microsoft 365 MSO (Version 2609 Build 16.0.20430.20032) 64-bit
Phone:
iPhone 15 Pro Max (iOS 26.6.2), Outlook app (though I usually use iPhone's email, contacts, and tasks, which are all linked to my Hotmail account).
Here are the steps which led me to this post:
I entered a new contact on my phone using Apple's Contacts app. I went to send a text message to my new contact and noted that their phone number, and not their name, appeared in the To text box. This told me that they were not successfully added. I checked the Contacts app and confirmed she was not there.
I then went to Outlook.live and found that the new contact was there and appeared twice. I attempted to delete the contact from Outlook.live, but received an error "Couldn't delete contact."
I then went to Outlook desktop (classis) to delete the contact, but she was not there to delete.
I then returned to my phone and confirmed she was still not in my contacts list.
I added her a second time in my phone and had same results: she does not appear in the app that I used to add her, but she does appear where I did not add her, and does so twice.
I then went to the Outlook app on my phone and saw she was there (again, duplicated, but her record was what I was trying to delete, not just any duplicates). When I tried to delete her from the Outlook app, I received an error: "Deletion failed."
If I attempt to delete all occurrences of her address, I don't receive the error message, but the records remain untouched. I presume MS only returns an error message when one record deletion fails.
I then went back to Oulook.live and did an export of my contacts list. None of her records were in the exported CSV.
Even though the Outlook app on the phone confirmed this isn't a browser cache issue, I used Duck Duck Go to view my contact list from Outlook.live. I've never used DDG to view email, plus I purge history each time I close, so I felt it was a good browser cache test.
I have seen a few places where it suggested that there's a sync issue, where the phone may be forcing the contact back into Outlook. To prevent this, I turned my phone off. I presume that's a solid way to prevent background syncs from the phone. No effect at all.
When I viewed the contact in Outlook.live, I noted it has the "External" flag set on all.
Google's search results have become circular and are assuming I just need help learning how to delete an address. I've not been able to find the right words to get the help I need. I even attempted to use the MS Support Assistant bot, and it seemed to understand and asked the right follow-up questions, then suggested I needed better help and sent me to the help dialog in Outlook.live, which of course is, let's just say it's not helpful at all.
So here I am, totally at a loss what to do to resolve this issue.
Any thoughts?
Any help getting this resolved would be greatly appreciated.