[throw3847282]

If it's for a single user, at that price, Microsoft's Exchange Online Plan 1 might be another option.

Otherwise Migadu or PurelyMail are a lot cheaper.

[mariusor]

I second PurelyMail. Their price schema is based mostly on mailbox storage size, and I believe I paid under 10$ for the last two years of hosting some catch-all mailboxes for multiple domains.