NS2.RCP.NET.pe has no MX records.
Question and response
Question
dig NS2.RCP.NET.pe. MX
Answer
The response has no answer records.
Authority
RCP.NET.pe. 3600 SOA NS.RCP.NET.PE.net. operador.rcp.pe. 2025020700 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0