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Lookups
1
Issue
8,192
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
Terms
redirect=
_spf.mail.yahoo.com
Redirect to this SPF record.
Included records
v=spf1 redirect=_spf.mail.yahoo.com
1 x ip4 ptr:yahoo.com ptr:yahoo.net ?all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable