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216.73.216.152
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nb2._u.mergeworld.com._spf.dmarclb.com
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nb2._u.mergeworld.com._spf.dmarclb.com
AXFR zone transfer
Queried
just now
Not an apex domain
The domain nb2._u.mergeworld.com._spf.dmarclb.com is not the root of its zone.
Instead, try zone transfer on
dmarclb.com
.