mail relay service for inbound and outbound email
i am looking for a mail relay service for inbound and outbound email to manage my ~15 domains in conjunction with cloudflare (or bunnycdn, if they are supporting mx settings too to hide mx records).
i already found this services:
mailcheap.co - email-shared
(can you recommend others too?)
and i am asking if maybe fastmail.fm with their "standard plan" will fit my needs too?
i want to "centralize" all my email-related stuff in one service beside from the hostings providers solution.
budget... up to 5 euro / month.