mail.supremeserver1.com has no SRV records.
Question and response
Question
dig mail.supremeserver1.com. SRV
Answer
The response has no answer records.
Authority
supremeserver1.com. 2560 SOA dns1.supremeserver1.com. hostmaster.supremeserver1.com. 1772473505 16384 2048 1048576 2560
Additional
The response has no additional records.