sbb.exchange SPF record

3 / 10 Lookups
1 Issue
34 IPv4 addresses
0 IPv6 addresses

The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.

v=spf1 a mx ptr ip4:217.26.214.64/28 ip4:217.26.214.80/28 -all Copied

Terms

a
pass if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
mx
pass if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
ptr:
PTR checks should no longer be used. See RFC 7208, section 5.5 .
or else
ip4:
217.26.214.64 / 28
pass if the sender's IP is between
217.26.214.64 and 217.26.214.79 (inclusive).
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
or else
ip4:
217.26.214.80 / 28
pass if the sender's IP is between
217.26.214.80 and 217.26.214.95 (inclusive).
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
or else
-all
fail the email's SPF check.

Included records

v=spf1 a mx ptr ip4:217.26.214.64/28 ip4:217.26.214.80/28 -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable

IP ranges

217.26.214.69
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
94.127.3.52
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
217.26.214.64 / 28
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
217.26.214.80 / 28
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042