I have a domain which I only use for email adresses. I don't host any content there.
My provider added an initial A record at the root of my domain which points to a server that delivers a placeholder page. Since I don't care about this placeholder page I'm thinking about deleting the A record at the domain root.
Could this cause any problems concerning sending and receiving email from this domain? Do other mail servers and/or spam filters care about the A record at the root of a domain respectively the absence of it?