Email Security

SPF, DKIM, DMARC, BIMI and email authentication analysis
Score
80/100
SPF
Valid
DKIM
Key present
DMARC
NONE
Findings
11

SPF

Status: Valid
Policy
~ALL
Lookups
5
Void Lookups
0
Record
v=spf1 include:spf.protection.outlook.com include:spf.permido.com include:mailgun.org ~all
  • fys3500.dk (v=spf1 include:spf.protection.outlook.com include:spf.permido.com include:mailgun.org ~all)
    • spf.protection.outlook.com (v=spf1 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:52.100.0.0/15 ip4:52.102.0.0/16 ip4:52.103.0.0/17 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/51 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 -all)
    • spf.permido.com (v=spf1 ip4:51.137.76.176 ip4:185.157.16.0/22 ip4:52.157.207.208 ip4:52.157.200.252 ip4:13.73.165.143 ip4:50.31.156.96/27 ip4:104.245.209.192/26 ip4:50.31.205.0/24 -all)
    • mailgun.org (v=spf1 include:_spf.mailgun.org include:_spf.eu.mailgun.org -all)

SPF defines which mail servers are allowed to send email for this domain. Receivers use it to reduce spoofing by checking whether the sending server is authorized by the published SPF record.