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IPv4 address
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Terms
ip4:
140.235.100.221 / 32
pass
if the sender's IP is between
140.235.100.221 and 140.235.100.221 (inclusive).
140.235.100.221 and 140.235.100.221 (inclusive).
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AS53356
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:140.235.100.221 -all