How not to set up your DNS (part 4)

Presented in the traditional illustrated form:

; dig +short mx mail2world.com.
10 publicms2.mail2world.com.
10 publicms1.mail2world.com.
; dig +short a publicms1.mail2world.com.
216.163.188.54
; dig +short a publicms2.mail2world.com.
216.163.188.54

That's an, uh, interesting way to do redundant MXes. Or, in their case, redundant MX records.