Strikethrough messages in Outlook when deleting

Hello, I have several email accounts set up as IMAP, and when I delete an email, it appears with a strikethrough, and I have to purge it to permanently delete it, which suits me perfectly.

I recently set up a new professional email account, also IMAP, and I can't get this option. The emails are deleted directly; they are not crossed out. They disappear as soon as I click delete.

Can someone help me set this email account to have the same settings, meaning strikethrough to delete?

Thanks