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Lookups
0
Issues
1
IPv4 address
1
IPv6 address
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
ip6:
2001:4070:1:250::250 / 128
pass
if the sender's IP is between
2001:4070:1:250::250 and 2001:4070:1:250::250 (inclusive).
2001:4070:1:250::250 and 2001:4070:1:250::250 (inclusive).
Technical University of Gdansk, Academic Computer Center TASK
AS5550
or else
-all
fail
the email's SPF check.
Included records
v=spf1 mx ip6:2001:4070:1:250::250 -all