We have 3 MX record configured for our domain. 2 MX record are primary 3rd MX record is backup (backup email and backup ISP).
We are getting emails to our backup email account. Want to know why they're going there - its legitimate emails not spam mail. These emails are blast emails from LinkedIn not from actual clients. so i was hoping the headers would say if it attempted to reach the real mail server or not.
basically besides for the actual server going down (which it didn't) what would cause email to go to the next mx record and skips the first two MX?
Is there a way to check why those emails are going through 3rdMX , not primary MX records ?
or will an email being sent, record in the message headers that it attempted tor reach the first mx record?