spam from <preview@***> where the *** part changes each time

This does not solve the problem. It just sends "preview@xxx" to junk email. What we are wanting is to not allow any email from preview@xxx to come in at all....i.e. total blocking. These spam emails go in cycles. Before the preview the spammers were using "renew@xxx". That is why we are all trying to set rules but Outlook will not allow a rule such ad block all emails that begin with renew@xxx or preview@xxx.

The moderators are really unaware of this issue with spam emails. Most of us do not use Microsoft 360. So, their remedies are invalid. As I mentioned in my earlier post, I have been swamped with spam from preview@. The message source, "To:" reads "Undisclosed recipients." Here is where Microsoft should stop the email from reaching their servers. My problems started when they changed from Mail & Calendars for windows 10 to this online diluted version of Outlook. The next day my account was compromised and Microsoft was responsible. They need to come clean about a breach in security. For the last month I have been blocking the domain names for all the junk mail I've received. It reduces the count, although why should I have to deal with it when the company can investigate user complaints from their end. Yes, I have sent feedback moderator! The program loads slowly, almost like going back to the early nineties. I'm giving this client another 3 weeks then I'll make another choice.

This is an AI response according to AI detector Quillbot!

I just wanted to say that the emails have almost all gone away. If the Outlook team had something to do with this, I want to give my heartfelt thanks.

I have the same problem, spam from preview@.... It's pure insanity. Please help MICROSOFT! You are the computing experts and yet we can't block certain words from entering our email? You can't block obvious spam despite many complaints???