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Lookups
0
Issues
1
IPv4 address
2
IPv6 addresses
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
1 IPv6 address
or else
ip6:
2a01:4f9:2a:1991::2 / 128
pass
if the sender's IP is between
2a01:4f9:2a:1991::2 and 2a01:4f9:2a:1991::2 (inclusive).
2a01:4f9:2a:1991::2 and 2a01:4f9:2a:1991::2 (inclusive).
Hetzner Online
AS24940
or else
-all
fail
the email's SPF check.
Included records
v=spf1 mx ip6:2a01:4f9:2a:1991::2 -all