Comment by marc_abonce

11 hours ago

In over 6 years of using Mailbox, I only remember one website that rejected the domain. It's a government website and they only started rejecting "invalid" (non-duopoly) domains sometime this year.

I do occasionally get emails that take longer to arrive into my inbox (between 5 minutes up to 1 hour), but the emails always arrive eventually. Or maybe I haven't noticed...