spf1.werk21system.de SPF record

1 / 10 Lookups

1 Issue

198 IPv4 addresses

0 IPv6 addresses

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


                              v=spf1 ip4:149.233.9.0/25 ip4:185.138.142.128/26 ip4:49.13.240.50 ip4:91.216.245.166 ip4:78.46.128.86 ip4:136.243.129.58 ip4:162.55.134.95 ip4:23.88.7.111 ptr:werk21system.de ~all

Copied

Terms

ip4:

149.233.9.0 / 25

pass if the sender's IP is between
149.233.9.0 and 149.233.9.127 (inclusive).

NTT Global Data Centers EMEA

AS203329

or else

ip4:

185.138.142.128 / 26

pass if the sender's IP is between
185.138.142.128 and 185.138.142.191 (inclusive).

NTT Global Data Centers EMEA

AS203329

or else

ip4:

49.13.240.50 / 32

pass if the sender's IP is between
49.13.240.50 and 49.13.240.50 (inclusive).

Hetzner Online

AS24940

or else

ip4:

91.216.245.166 / 32

pass if the sender's IP is between
91.216.245.166 and 91.216.245.166 (inclusive).

Michael Sebastian Schinzel trading as IP-Projects GmbH & Co. KG

AS48314

or else

ip4:

78.46.128.86 / 32

pass if the sender's IP is between
78.46.128.86 and 78.46.128.86 (inclusive).

Hetzner Online

AS24940

or else

ip4:

136.243.129.58 / 32

pass if the sender's IP is between
136.243.129.58 and 136.243.129.58 (inclusive).

Hetzner Online

AS24940

or else

ip4:

162.55.134.95 / 32

pass if the sender's IP is between
162.55.134.95 and 162.55.134.95 (inclusive).

Hetzner Online

AS24940

or else

ip4:

23.88.7.111 / 32

pass if the sender's IP is between
23.88.7.111 and 23.88.7.111 (inclusive).

Hetzner Online

AS24940

or else

ptr:

werk21system.de

PTR checks should no longer be used. See RFC 7208, section 5.5 .

or else

~all

soft fail the email's SPF check.

Included records

spf1.werk21system.de

v=spf1 ip4:149.233.9.0/25 ip4:185.138.142.128/26 ip4:49.13.240.50 ip4:91.216.245.166 ip4:78.46.128.86 ip4:136.243.129.58 ip4:162.55.134.95 ip4:23.88.7.111 ptr:werk21system.de ~all

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