7 points
MXroute are great. I switched to self-hosting my email server using Mailcow a few years ago, but still use MXroute for outbound email (meaning my SMTP server relays outbound email via MXroute). Theyβve got deliverability figured out and have several fallbacks - I think if all of their outbound servers fail to send the email, they retry via Mailbaby and Mailchannels.