mailout.outbox.co.il has no MX records.
Question and response
Question
dig mailout.outbox.co.il. MX
Answer
The response has no answer records.
Authority
outbox.co.il. 1800 SOA will.ns.cloudflare.com. dns.cloudflare.com. 2396960073 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0