How to change MX record in DirectAdmin Panel?
1. Login to your DirectAdmin control panel via the URL [ https://servername:2082/ or https://serverip:2082/ ]
2. Click on DNS Management under Account Manager.
3. Click on Add record.
4. Choose Record type as MX
5. Enter the Domain name.
6. Enter the Record value.
7. Click on Add
To use Guite as mail server for your domain.
1. You can click Modify MX record Option
2. Chose Google Suite MX
Similarly other mail servers like Office 365, Zoho mail can be used. To use the same server as mail server you can choose Local Default.