The problem? Waiting a day to verify DNS changes slows you down
Making changes to your DNS typically means waiting quite some time for the first report to arrive - sometimes up to 24 hours - in order to see if the changes you made have had the desired effect.
When you do eventually get these reports, you’re faced with cryptic email headers to spot the problems with your latest email configuration. This adds another layer of complexity to your investigation and will ultimately slow you down.