Blocked senders and domains list has disappeared, Outlook now not saving blocked list

I access Hotmail using my android and web browser. I discovered that my entire safe and blocked sender list displayed correctly in my web browser AFTER I cleared the Outlook cache on my android.

I too am having the same issue! Totally frustrating, so many people have said that we have lost our extremely long block lists yet we are told to clear temp cache or use a different browser, i mean come on we aint stupid and please stop treating us as such! This is an MS Outlook issue on their end!

The tools we have to block junk are a joke and something seriously needs to be done about this ASAP! Billions of £ & $ are scammed from people every year, at least help us protect ourselves!

Make it easier to block the domain the email actually came from, its such a pain trolling through the message source to find the real place the email come from!

Hope this gets sorted soon and we get out block lists back….

That's because MS is and has been fully in with the corrupt spamming industry. MS could care less about your privacy. They fully are and have been participating in the spreading of unwanted spam. Spam is the business of Microsoft.

This is (and always has been) evident in the simple fact that, to begin with, the user must go through at least five different steps in blocking domains. I have complained for years about this.

But, Microspam, as I have said before has been an active participant in promoting the spam industry. They, like all the rest, Google, Yahoo, Apple, etc. financially benefit from all of us having no option, but to put up with spam.

It should be easy to report and block spam domains, despite spammers adding dot something to the everlong domain names.

Additionally, I have complained before that it should be possible to block even countries from contacting you. I have no business with any domains ending with a .in, a .fr or a .au. It should just be easy to restrict my communications to .com, .net, or dot-whatever country I operate in.

But no. It's a F(cking free for all. It is impossible to believe that Microcrap, in 2025, in the days of AI and they're fffffing COPILOT, that one is not able, and neither do they manage to centrally block certain domains.

So it is all by design.

That's the truth.

I have been seeing the same problem. My 100s long list of blocked senders is gone.

I have seen one small improvement. New blocked senders are sticking on the list. When I first noticed this, I could add new blocked senders, but the would disappear by the next day. Now the blocked senders that I add seem to be sticking around.

The 100s of previously blocked senders, probably lost forever. Will MS show up here and say, "oops, we really blew that"? Probably never.

Has anyone looked at the email Rules system? That seems to be trashed as well. I also had some rules set up to filter out senders and subjects. Those are now lost and broken. Previously you could set up a list of conditions as OR terms. You could do something if the subject matched XXX or YYY or ZZZ. Now you can't do that. You can only add AND terms. You have to write a different rule for every variation, even if they all take the same action.

Screw up 3 is that if I click on the settings gear icon, it opens to the Layout page. I then have to click back to get to the main list of pages and then click to the Rules or Junk page. This bug comes and goes. I won't be surprised if it goes back to normal in a few days.

They probably let an unsupervised AI change the code.

Dear Fung(2),

Welcome to Microsoft Community.

According to your description, your list of blocked senders and domains disappeared, and you tried to add blocked senders and waited a while to find that the blocked senders were not saved. Don't worry, you can try my suggestions below, I hope my suggestions can help you.

1. You can try to change the browser, you can use a non-Google kernel browser, such as Edge or Firefox, sometimes browser settings or installed plug-ins may affect the normal operation of your mailbox. Try logging in to your mailbox in a different browser and then check if you can add and save mailboxes in blocked senders and domains.
2. You can try clearing the browser cache and using the browser's private mode to log in to Outlook Web, and then check that you can properly save sender information in blocked senders and domains.

Notes: Your browser automatically saves temporary internet files to help pages load faster. Clearing this cache will sometimes fix website issues. Please back up all your personal files first, such as Favorites, to ensure you do not lose data.  

3. If none of the above suggestions help you properly save sender information in blocked senders and domains, you can ask Outlook.com Support for help. You can click Help - Help in Outlook.com, then type in your question, and then click Yes in Still need help below.

And then sign in with your personal Microsoft account, not your work and school account, then click Chat with a support agent in your web browser.

I hope this information has been helpful. If you have any questions, please let me know and I will be happy to help you further.

Have a good day.

Best Regards, 

Jim - MSFT | Microsoft Community Support Specialist