List all the MX records for the domains in an M365 tenant

[merill]

Credits to @chrislehratx & @NathanMcNulty for sharing this script.

$mxRecords = (Get-MgDomain -All).Id | ForEach-Object {
   Get-MgDomainServiceConfigurationRecord -DomainId $_ | Where-Object { $_.RecordType -eq "Mx" }
}
$mxRecords | select Label, RecordType, Ttl, SupportedService

Sample Output:

Label                     RecordType  Ttl SupportedService
-----                     ----------  --- ----------------
pora.onmicrosoft.com      Mx         3600 Email
elapora.com               Mx         3600 Email
pora.mail.onmicrosoft.com Mx         3600 Email