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Updated Configure SPF (markdown)

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Jean-Denis Vauguet 2020-06-01 02:53:42 +02:00
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docs/content/config/best-practices/spf.md
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@ -2,6 +2,8 @@ From [Wikipedia](https://en.wikipedia.org/wiki/Sender_Policy_Framework):
> Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain's administrators. The list of authorized sending hosts for a domain is published in the Domain Name System (DNS) records for that domain in the form of a specially formatted TXT record. Email spam and phishing often use forged "from" addresses, so publishing and checking SPF records can be considered anti-spam techniques.
For a more technical review: https://github.com/internetstandards/toolbox-wiki/blob/master/SPF-how-to.md
To add a SPF record in your DNS, insert the following line in your DNS zone:
; MX record must be declared for SPF to work