_spf.altip.la has no MX records.
Question and response
Question
dig _spf.altip.la. MX
Answer
The response has no answer records.
Authority
altip.la. 1800 SOA denver.ns.cloudflare.com. dns.cloudflare.com. 2396833181 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0