+1 for MXroute. I have unlimited domains with 25GB of storage for $30 every 3 years. So less than a dollar per month. Looks like they are still offering it. It’s more than enough for email especially considering the Gmail account I used for 15 years was under 5GB.
I switched to them at the beginning of the year so about 9 months ago and have not had any issues.
If you want to do less math you can just drop some zeroes and say it’s the same as making $70k while losing $2.50