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| mcsys.com.sg | NS | 21600 | | ns4.bdm.microsoftonline.com |
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| mcsys.com.sg | NS | 21600 | | ns3.bdm.microsoftonline.com |
| mcsys.com.sg | A | 3600 | | 103.53.172.121 |
| mcsys.com.sg | MX | 3600 | 0 | mcsys-com-sg.mail.protection.outlook.com |
| www.mcsys.com.sg | A | 3600 | | 103.53.172.121 |
| www.mcsys.com.sg | CNAME | 3600 | | mcsys.com.sg |
| www.mcsys.com.sg | MX | 3600 | 0 | mcsys-com-sg.mail.protection.outlook.com |