Long ago, I had a 5 character username (first-name + last initial) on a decent sized ISP's email system. Eventually it got a ton of spam, and it was pretty cle

Long ago, I had a 5 character username (first-name + last initial) on a decent sized ISP's email system. Eventually it got a ton of spam, and it was pretty clear a lot of that was from brute forcing emails at the ISP. > This email address has only ever been used to sign up for HN. I have never posted the email address and never set it to public. Was it something simple and guessable, like hn@yourdomain.com? or ycombinator@yourdomain.com?