I'm genuinely surprised no one has mentioned mxroute[1]. Thier pricing normally is pretty decent, but they keep the BF deals going pretty much all year [2].
I've been using them for 6 years with no issues. I use it now with all my domains and never have any deliverability issues.
The owner (Jar - one person shop again) is passionate about their email reputation for deliverability and is active on both lowendtalk and the dedicated sub Reddit.
I ended up comparing purleymail and mxroute - tested mxroute and stayed with them.
I've been using them for 6 years with no issues. I use it now with all my domains and never have any deliverability issues.
The owner (Jar - one person shop again) is passionate about their email reputation for deliverability and is active on both lowendtalk and the dedicated sub Reddit.
I ended up comparing purleymail and mxroute - tested mxroute and stayed with them.
[1] https://mxroute.com/ [2] https://mxroute.blackfriday/