osg3.wc09.net has no MX records.
Question and response
Question
dig osg3.wc09.net. MX
Answer
The response has no answer records.
Authority
wc09.net. 2560 SOA ns1.whatcounts.com. hostmaster.wc09.net. 1770850927 16384 2048 1048576 2560
Additional
The response has no additional records.