Our users have been complaining about activation emails taking a while to be received. After digging around, we discovered that about 50% of users get the emails instantly and the other 50% take between 5 mins and 2 hours, which is unacceptable.
We determined that Wordpress was sending emails at a rate of ~20+ emails/sec and Godaddy's threshold is 4 emails/sec, which I think is causing this problem.
Is there a way for me to limit stagger the emails out a bit more? Are there plugins or settings I can adjust to resolve this?