On 01 Jul 2021, at 23:54, Maurizio Caloro <mauri...@caloro.ch> wrote: > > Searching any Service that offer free any possible MX Backup?
MX backups are a legacy of 30-40 years ago when it was very common to have machines that only periodically connected to the Internet. There are many reasons they are a bad idea in a modern context, and having a third party be a alternate path for your mail is a particularly bad idea. The real question is why do you think you need a backup MX? IMO, if you really do need a backup MX (and I doubt very much you do) then the only reasonable way to do it is to have a second server under your control to act as backup. The better solution, nearly alway¹, is to have two mail servers that share a spool and both act in a load-balanced way that is basically invisible to the sending transport. ¹ Nearly always means "in every case I can think of, but there might be some case I have not thought of." -- When someone is impatient and says, "I haven't got all day," I always wonder, How can that be? How can you not have all day?