Understanding BULK and QUARentined Mail

Question:

Why does some of the mail that I get have [BULK] or [QUAR] in the subject line?

BULK - is mail that may be junk mail or it may not. The mail filter isn’t certain so it delivered it. With filters built in Outlook you can move this mail to another folder to look at later or just manually delete it.

QUARantined - is mail that contained a virus or a malicious link. With filters built in Outlook you can move this mail to another folder to look at later or just manually delete it. Do not ever open attachments or links unless you are certain that someone sent you that information intentionally.