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216.73.216.59
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spf-b.authsmtp.com
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216.73.216.59
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spf-b.authsmtp.com
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72.52.72.36
Hurricane Electric
AS6939
United States of America
San Jose, California
Question and response
Question
dig
spf-b.authsmtp.com.
A
Answer
spf-b.authsmtp.com.
14400
A
72.52.72.36
Authority
The response has no authority records.
Additional
.
0
OPT
; payload 1232, xrcode 0, version 0, flags 0