Hacked?

There was an email sent to a craigslist personal account from my Iphone email how could this happen without me knowing?

Hi Donna,

It might have been your phone, or if you're using IMAP (most likely), it may have been sent from your account using webmail or another device.

Which email service do you use?

If you suspect your account has been accessed I recommend changing your password, turning on 2 step authentication, and checking your settings to make sure no forwarding addresses or other changes have been made.