SPF Check:
df.dk

1. Specify domain name

Enter a domain to be checked for the SPF record
2. Specify IP address (optional)
Enter any IP address to check if it is authorized to send e-mails by the SPF record

What is the SPF lookup for?

With the SPF lookup you analyze the SPF record of a domain for errors, security risks and authorized IP addresses. Optionally, you can specify an IP address to check if it is authorized to send e-mail on behalf of the domain. The SPF lookup analyzes registered TXT records in real time. If you want to specify an SPF record manually, use the SPF Analyzer.

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SPF check failed

Your SPF record check result
  •   SPF record found
  •   Syntax check: 1 Error
  •   Email Spoofing Protection: Poor
Summary of the SPF check

Does a valid SPF record exist?
An SPF record was found for the domain df.dk.
The SPF record for df.dk is not valid.
The syntax check resulted in a total of 1 errors.
of the email -Spoofing protection for this domain is not or not sufficiently provided.

Which IP-s are legitimate to send emails?
The SPF record contains a reference to external rules, which means that the validity of the SPF record depends on at least one other domain. A detailed list of the rules used externally can be found in the analysis result. In total, 36 IP address(es) were authorized by the SPF record to send emails.

The SPF record analysis was performed on 28.03.2024 at 13:38:26 clock.

Lookup for the domain:
df.dk
IP address to be checked:
no IP address specified

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Evaluation for the domain df.dk 

Nameserverset:
ns4.simply.com
ns3.simply.com
ns1.simply.com
ns2.simply.com
Determined SPF record:
Legitimated IP addresses:
IP Provider / ASN DNSBL-Check
213.150.59.248 Telia Company AB blacklist 
213.150.59.197 Telia Company AB blacklist 
213.150.59.3 Telia Company AB blacklist 
185.21.42.20 team.blue Denmark A/S blacklist 
94.231.96.0/20
team.blue Denmark A/S blacklist 
91.197.248.0/22
team.blue Denmark A/S blacklist 
80.196.101.0/24
TDC Holding A/S blacklist 
195.41.131.0/24
TDC Holding A/S blacklist 
185.21.40.0/22
team.blue Denmark A/S blacklist 
185.25.140.0/22
team.blue Denmark A/S blacklist 
212.237.248.0/23
team.blue Denmark A/S blacklist 
185.221.36.0/22
team.blue Denmark A/S blacklist 
46.36.204.0/22
team.blue Denmark A/S blacklist 
46.36.208.0/21
team.blue Denmark A/S blacklist 
217.61.236.0/22
team.blue Denmark A/S blacklist 
91.133.32.0/19
team.blue Denmark A/S blacklist 
77.243.128.0/20
team.blue Denmark A/S blacklist 
193.239.96.0/22
team.blue Denmark A/S blacklist 
195.69.128.0/22
team.blue Denmark A/S blacklist 
2a02:2338::/32
team.blue Denmark A/S blacklist 
89.188.72.0/21
team.blue Denmark A/S blacklist 
93.191.152.0/21
team.blue Denmark A/S blacklist 
194.150.113.0/24
team.blue Denmark A/S blacklist 
194.150.112.0/24
team.blue Denmark A/S blacklist 
198.2.128.0/24
THEROCKETSCIENCEGROUP blacklist 
198.2.132.0/22
THEROCKETSCIENCEGROUP blacklist 
198.2.136.0/23
THEROCKETSCIENCEGROUP blacklist 
198.2.145.0/24
THEROCKETSCIENCEGROUP blacklist 
198.2.186.0/23
THEROCKETSCIENCEGROUP blacklist 
205.201.131.128/25
THEROCKETSCIENCEGROUP blacklist 
205.201.134.128/25
THEROCKETSCIENCEGROUP blacklist 
205.201.136.0/23
THEROCKETSCIENCEGROUP blacklist 
205.201.139.0/24
THEROCKETSCIENCEGROUP blacklist 
198.2.177.0/24
THEROCKETSCIENCEGROUP blacklist 
198.2.178.0/23
THEROCKETSCIENCEGROUP blacklist 
198.2.180.0/24
THEROCKETSCIENCEGROUP blacklist 
SPF-Syntax Check:
Analysis result of the SPF record for the domain: df.dk

SPF record available?

We found an SPF record for the domain.

v=spf1

Additionally authorized IPv4 addresses

Explicit IPv4 addresses in the SPF record have been authorized to send

213.150.59.248
213.150.59.197
213.150.59.3
185.21.42.20

Additional external SPF records

We could find other records authorized in the SPF record

include:spf.onlinemail.io
v=spf1 include:_netblocks.zitcom.dk include:_netblocks2.zitcom.dk ~all
include:_netblocks.zitcom.dk
v=spf1 ip4:94.231.96.0/20 ip4:91.197.248.0/22 ip4:80.196.101.0/24 ip4:195.41.131.0/24 ip4:185.21.40.0/22 ip4:185.25.140.0/22 ip4:212.237.248.0/23 ip4:185.221.36.0/22 ~all
ipv4:
94.231.96.0/20
ipv4:
91.197.248.0/22
ipv4:
80.196.101.0/24
ipv4:
195.41.131.0/24
ipv4:
185.21.40.0/22
ipv4:
185.25.140.0/22
ipv4:
212.237.248.0/23
ipv4:
185.221.36.0/22
include:_netblocks2.zitcom.dk
v=spf1 ip4:46.36.204.0/22 ip4:46.36.208.0/21 ip4:217.61.236.0/22 ip4:91.133.32.0/19 ip4:77.243.128.0/20 ip4:193.239.96.0/22 ip4:195.69.128.0/22 ip6:2a02:2338::/32 ip4:89.188.72.0/21 ip4:93.191.152.0/21 ip4:194.150.113.0/24 ip4:194.150.112.0/24 ~all
ipv4:
46.36.204.0/22
ipv4:
46.36.208.0/21
ipv4:
217.61.236.0/22
ipv4:
91.133.32.0/19
ipv4:
77.243.128.0/20
ipv4:
193.239.96.0/22
ipv4:
195.69.128.0/22
ipv4:
89.188.72.0/21
ipv4:
93.191.152.0/21
ipv4:
194.150.113.0/24
ipv4:
194.150.112.0/24
ipv6:
2a02:2338::/32
include:spf.mandrillapp.com
v=spf1 ip4:198.2.128.0/24 ip4:198.2.132.0/22 ip4:198.2.136.0/23 ip4:198.2.145.0/24 ip4:198.2.186.0/23 ip4:205.201.131.128/25 ip4:205.201.134.128/25 ip4:205.201.136.0/23 ip4:205.201.139.0/24 ip4:198.2.177.0/24 ip4:198.2.178.0/23 ip4:198.2.180.0/24 ~all
ipv4:
198.2.128.0/24
ipv4:
198.2.132.0/22
ipv4:
198.2.136.0/23
ipv4:
198.2.145.0/24
ipv4:
198.2.186.0/23
ipv4:
205.201.131.128/25
ipv4:
205.201.134.128/25
ipv4:
205.201.136.0/23
ipv4:
205.201.139.0/24
ipv4:
198.2.177.0/24
ipv4:
198.2.178.0/23
ipv4:
198.2.180.0/24

E-Mail handling

How should the checkHost() function of the e-mail server handle the e-mail? (syntax )

?all
Neutral (e-mails are expected to be accepted)

Unknown mechanisms

Unknown mechanisms were found in the SPF record



Will be forwarded to another SPF record?

There is no reference to any other SPF record

Are the server addresses allowed to send e-mails?

In the SPF entry the mechanism 'a' has not been set.

Additionally authorized A-records?

In addition to the A-Records stored in the DNS, we could not find any other records authorized in the SPF-Record.

Are the registered mail servers allowed to send e-mails?

In the SPF entry the mechanism 'mx' has not been set

Additionally authorized MX records

We could not find any other records authorized in the SPF record besides the MX records stored in the DNS

Additionally authorized IPv6 addresses

No explicit IPv6 addresses in the SPF record have been authorised to send

How is the sender informed?

The exp mechanism acts as a return to the sender if the IP address was not authorized to send and notify them. None was found.

PTR (obsolete mechanism)

The ptr mechanism is deprecated, slow and insecure and should not be used

PTR:

The ptr mechanism is deprecated, slow and insecure and should not be used

Authorize IP addresses with markers

When SPF is evaluated, macros can specifically authorize Ip addresses based on the request or connection of the user or client (RFC7208 )

Receiver address

analysis.ra-missing

Amount of reports

analysis.rp-missing

Report selection

analysis.rr-missing

Recently performed SPF lookups

Server IP Address

We have determined the following IP address for the domain:

No domain specified

Reverse address

We have determined the following name for the server IP address:

linux108.unoeuro.com

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