Hello Dirk,
for host names outside of the specified zone you must use a FQDN name,
i.e. a host name ending with a dot (in you case
"mail.protection.outlook.com.").
Regards,
David
On 2021-10-29 16:37, Dirk Segers wrote:
  Hi,
 we've had knot in use for years now and are still using version 1.6.7.
 I
 We've recently migrated e-mail to exchange online. I've been asked to
 update the MX record in the zone to point to
 
mail.protection.outlook.com.
 I initially tried to simply replace the current value by
 
mail.protection.outlook.com but then the name of the zone is added to
 the value. This is not a valid record.
 I see no way to update the MX record to this value. Any suggestions?
 Thanks in advance for the feedback.
 Kind regards,
 Dirk