SPF DNS-Entry
An SPF DNS record defines a sender policy for a DNS name. The Sender Policy Framework (SPF for short) is a technique that can make it more difficult to fake the sender of an email.

For this purpose, a special TXT record (SPF) is entered in the DNS zone of the respective domain, which determines which servers are allowed to send e-mails for a domain. If the mail server supports SPF, the e-mail recipient can then check whether the sending servers have the rights to send e-mails for this domain. This may prevent forgery of the sender address.

This entry can be set by yourself or 123domain.eu generates it automatically for you when using our mail servers.

Example of an SPF record if you use our mail system:

Strict:
"v=spf1 mx a:mail.123domain.eu a:smtp1.mail.123domain.eu a:smtp2.mail.123domain.eu -all"
SoftFail:
"v=spf1 mx a:mail.123domain.eu a:smtp1.mail.123domain.eu a:smtp2.mail.123domain.eu ~all"
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