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216.73.216.106
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cust00000003.tun.ipv6.zsttk.net
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216.73.216.106
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SPF
cust00000003.tun.ipv6.zsttk.net
SPF record
Queried
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No SPF record
No SPF record found for cust00000003.tun.ipv6.zsttk.net
check TXT records