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SPF, DKIM & DMARC

In HostEurope sind für smns-bw.de diverse TXT-Einträge angelegt, um die Sicherheit des Mailaccounts zu erhöhen.

SPF

.smns-bw.de 

v=spf1 a mx ip4:193.197.147.9 include:_spf.google.com include:spf.sosafe.de -all
  • v=spf1: Specifies the SPF version (SPF version 1).
  • a: Allows the IP address of the domain’s A record to send emails.
  • mx: Allows the IP addresses of the domain’s MX records to send emails.
  • ip4:193.197.147.9: Explicitly allows this specific IPv4 address.
  • include:_spf.google.com: Includes the SPF record for Google Workspace (authorizing Google-based servers to send emails for this domain).
  • include:spf.sosafe.de: Includes another SPF record for a third-party service (in this case, SoSafe).
  • -all: Denies all other sources not mentioned in the SPF record.


DKIM

crsend._domainkey.smns-bw.de 

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArl4cnvKWpK9QWwzSiM9r4yuLr8N3x35DiyJHsWbHpyyJMSsVx8myoWcQveIPb6zaX5ckaoFOqYeWDxdDfNKSpqvsowTLD6K1y5wL3AepkJ0hU3MAB1WZKuDVWo613GyQstC5wxJ2B2MzB8ip3y6xegDnhTNwYdFOCyx7lOUMeXFyrQBbA1MVARRx3Kn/8FiBEQDdPRgPqUM081kxrk32hoLCvhWFS57IUYmAy0yIci4Yufjp0/frnXoqB0xjl6mHBTI8VxfD6GwH5RfsCWYGwaIaDNhpXtmsrqZv7R5eGAtV6JGt8ZgoKqh+Z2ZU3jYbs6GugNIYrmU1Sw/a3giHxQIDAQAB

google._domainkey.smns-bw.de 

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2XhUCPT0paozPejK2jXynEgXjq0vvETImE5VIi10nBejxpe0eHGhiHwRxIdc+6ZqwgCiSv2oYU+3P3PFJ1UTD9f2MRAoGc16veuLe6Seop0ODFAEJF5KGMaQyI/iDNBIVErm563V6kcjNax+zuelksVlGpq5sMQoeUDYfqcYppoGgdK3YLDq05VLRE3DOenCcriWa1Sp+vewFukxbJ92aCN/mWTyBHnWJnqzlQHNj5SvHoRcSwOyyusUEkTr9cG0/u/Nh83DTZXhBlTcFTFu5ab3HFWBkU5qrn0OfeFXDAisNo3c3oQP5tJDwcscBZkYXWdtBIWicOdAwEc5YDbkgQIDAQAB

he120925._domainkey.smns-bw.de 

v=DKIM1; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAurTlWW12TYAzY/15WVBYd66n7sGuKVBnk1psH3O8ghTI2sQSsUzlOYLCaK8a2OgK4FLrhq/IXiql0zQSMCAds+h0b/y4oCnXebsoGmvXI9di9PhmZs5YJEJnwiyl9gmsLZhXy6p4rL4wevyklXt90mRxV+XcOBDPBpA9K2+/+I7syNAs5T2JiV7LlXobbrIJ7IT4uX2sLpkwMMl9rLoMEtPuP61eMx2GtsL/Wdly0jRVXJbWwUCXq5s5mICjocU3w1pZxswC6VP9Y1IjjvkEJUe/5nhtOvLOJr4mFpCuplyu1wOura6M9J1NezKb4ATiJGIr51HdUKWGmmFty/RRJQIDAQAB


DKIM einrichten

DMARC

_dmarc.smns-bw.de 

v=DMARC1; p=none; rua=mailto:it@smns-bw.de; ruf=mailto:it@smns-bw.de; fo=1

Spoofing und Spam mit DMARC verhindern