it3smtp01.vhostingcloud.com has no SRV records.
Question and response
Question
dig it3smtp01.vhostingcloud.com. SRV
Answer
The response has no answer records.
Authority
vhostingcloud.com. 1800 SOA daisy.ns.cloudflare.com. dns.cloudflare.com. 2397262376 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0