trendnet.org has no MX records.
Question and response
Question
dig trendnet.org. MX
Answer
The response has no answer records.
Authority
trendnet.org. 3600 SOA sjc1-tmns1.sdi.trendnet.org. dnsadmin.trendmicro.com. 273 900 600 86400 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0