Sending, receiving, and organizing email in Outlook.com
I have the same issue. 50+ spam every single day. I must check my junk mail folder regularly to ensure that something I need isn't being deleted in the junk. Scanning for real mail in the junk is a very tedious experience when you have so many emails per day from Renew@ spam. Blocking each of these one by one does nothing, as every email somehow has a different address, despite starting with Renew@. There has to be a fix for this. PLEASE HELP.
Are you blocking these as they come into the Inbox? If so, rather than block (send to Junk Mail folder) you can use a rule to automatically permanently delete all emails that come the Inbox with the word "Renew" as part of the senders address regardless how different the rest of the address is.
Look at my prior post on creating the rule and at the point of what to do with the email select permanently delete it options. Once the rule is made and active, any email with Renew in the address will be permanently deleted.