SPF Check: mahr.de

Check SPF record for mahr.de: ⊳Does a valid SPF record exist? ⊳What does it do? ⊳Which IPs are legitimate to send emails?

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mahr.de
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Summary
An SPF record was found for the domain mahr.de. The syntax check of the SPF record does not show any obvious errors. The SPF record for mahr.de is valid. In total 3 IP address(es) were authorized by the SPF record to send emails. The SPF record analysis was performed on 28.11.2020 at 09:58:40 clock.

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Evaluation for the domain mahr.de 

Nameserverset:
secondary000.dtag.net
pns.dtag.de
Determined SPF record:
Legitimated IP addresses:
IP Provider / ASN DNSBL-Check
87.128.224.222 Deutsche Telekom AG blacklist 
193.158.246.156 Deutsche Telekom AG blacklist 
194.25.242.123 Deutsche Telekom AG blacklist 
SPF-Syntax Check:
Analysis result of the SPF record for the domain: mahr.de

SPF record available?

We found an SPF record for the domain.

v=spf1

Are the server addresses allowed to send e-mails?

The mechanism 'a' was set in the SPF record. The following IP addresses are allowed to send

87.128.224.222

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

The mechanism 'mx' was set in the SPF entry. The following hosts are allowed to send

mail.mahr.de
mforward.dtag.de

E-Mail handling

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

~all
SoftFail (non-compliant e-mails are accepted but marked)

Will be forwarded to another SPF record?

There is no reference to any other SPF record

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.

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 IPv4 addresses

No explicit IPv4 addresses in the SPF record have been authorised to send

Additionally authorized IPv6 addresses

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

Additional external SPF records

We could not find any other records authorized in SPF-Record

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 )

Unknown mechanisms

No unknown mechanisms were found in 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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Server IP Address

We have determined the following IP address for the domain:

87.128.224.222

Reverse address

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

87.128.224.222

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