Microsoft365 MX-record at domain hyphen

[Copra]

When using the Microsoft365 template in DirectAdmin for domain.com, I got this MX-record:
0 domain-com.mail.protection.outlook.com.

When there is a hyphen in the domain, i.e. domain-24.com, I got this MX-record:
0 domain-24-com.mail.protection.outlook.com.

but Microsoft365 wants this MX-record:
0 domain24-com01c.mail.protection.outlook.com

So I tried to change the MX-record in DirectAdmin, but I can't. The error is 'Invalid MX value' when changing the name field in domain24-com01c.
How can I fix this?

Copra