Question and response
Question
dig _spf.serverlet.com. TXT
Answer
_spf.serverlet.com. 3600 TXT "v=spf1 include:_mta.serverlet.com include:_webdelivery.serverlet.com include:_prdgw.shellrent.com ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0