From d86fb4740fd4a662a5c6bf63572e56113a54189a Mon Sep 17 00:00:00 2001 From: Thomas VIAL Date: Sun, 24 Apr 2016 17:46:33 +0200 Subject: [PATCH] Created Configure SPF (markdown) --- Configure-SPF.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 Configure-SPF.md diff --git a/Configure-SPF.md b/Configure-SPF.md new file mode 100644 index 0000000..246c165 --- /dev/null +++ b/Configure-SPF.md @@ -0,0 +1,11 @@ +> 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. + +To add a SPF record in your DNS, insert the following line in your DNS zone: + + ; Check that MX is declared + domain.com. IN MX 1 mail.domain.com. + + ; Add SPF record + domain.com. IN TXT "v=spf1 mx ~all" + +Increment DNS serial and reload configuration. \ No newline at end of file