If I set the MX record of a domain I host in MIAB will that have MIAB route all mail for that domain to the other mail server I have setup?
The reason for this is because it uses LDAP authentication and I would like to use that for a corporate email I host for a company. they would like LDAP auth and I would rather not have to setup in my registrars DNS settings as that takes time to do.
So my question is exactly this:
In the Custom DNS page I can set an MX record, will this override the default MX record set for a domain I host in MIAB? Will this also override DKIM/SPF records as well? or will those need to be set separately?