sg.de.o2.com SPF record

3 / 10 Lookups
1 Issue
1,026 IPv4 addresses
0 IPv6 addresses

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

v=spf1 mx ptr a:mucsgrelay01.sg.de.o2.com ip4:82.113.116.0/24 ip4:82.113.101.0/24 ip4:82.113.102.0/24 ip4:82.113.108.0/24 ~all Copied

Terms

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
a:
mucsgrelay01.sg.de.o2.com
pass if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
ip4:
82.113.116.0 / 24
pass if the sender's IP is between
82.113.116.0 and 82.113.116.255 (inclusive).
Telefonica Germany GmbH & Co.OHG
AS6805
or else
ip4:
82.113.101.0 / 24
pass if the sender's IP is between
82.113.101.0 and 82.113.101.255 (inclusive).
Telefonica Germany GmbH & Co.OHG
AS6805
or else
ip4:
82.113.102.0 / 24
pass if the sender's IP is between
82.113.102.0 and 82.113.102.255 (inclusive).
Telefonica Germany GmbH & Co.OHG
AS6805
or else
ip4:
82.113.108.0 / 24
pass if the sender's IP is between
82.113.108.0 and 82.113.108.255 (inclusive).
Telefonica Germany GmbH & Co.OHG
AS6805
or else
~all
soft fail the email's SPF check.

Included records

v=spf1 mx ptr a:mucsgrelay01.sg.de.o2.com ip4:82.113.116.0/24 ip4:82.113.101.0/24 ip4:82.113.102.0/24 ip4:82.113.108.0/24 ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable

IP ranges

82.113.101.23
Telefonica Germany GmbH & Co.OHG
AS6805
82.113.116.110
Telefonica Germany GmbH & Co.OHG
AS6805
82.113.116.0 / 24
Telefonica Germany GmbH & Co.OHG
AS6805
82.113.101.0 / 24
Telefonica Germany GmbH & Co.OHG
AS6805
82.113.102.0 / 24
Telefonica Germany GmbH & Co.OHG
AS6805
82.113.108.0 / 24
Telefonica Germany GmbH & Co.OHG
AS6805