mail.cliente.quattrocom.mx has no SRV records.
Question and response
Question
dig mail.cliente.quattrocom.mx. SRV
Answer
The response has no answer records.
Authority
quattrocom.mx. 86400 SOA edns4.ultradns.com. premiumdns.support.neustar. 2019053223 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0