To handle email externally, all you normally have to do is change a bunch of MX and related DNS records. You have to do this in DirectAdmin too of course, but then it also has this additional option:
From a technical perspective, what does this option actually do? What happens if I change the MX records but don't uncheck the box? Or vice-versa? There's nothing about this setting in the Site-Helper page (which is possibly a little out of date) or any of the other docs.
Use this server to handle my e-mails. If not, change the MX records and uncheck this option.
From a technical perspective, what does this option actually do? What happens if I change the MX records but don't uncheck the box? Or vice-versa? There's nothing about this setting in the Site-Helper page (which is possibly a little out of date) or any of the other docs.