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--- security:email [2024/09/29 16:53] – gerardorourke
+++ security:email [2024/09/29 18:04] (current) – [SFP] gerardorourke
@@ Line 10: / Line 10: @@
 https://www.cloudflare.com/learning/dns/dns-records/dns-spf-record/
-Example - DNS TXT record for orourke.tv is the below - which includes the two SMTP IP address for mx1.reg365.net & mx2.reg365.net
+Example - DNS TXT record for orourke.tv is the below - which includes the SMTP IP address for smtp.reg365.net
 <code>
-v=spf1 ip4:85.233.160.15 ip4:85.233.160.115 –all
+v=spf1 ip4:85.233.160.17 –all
+</code>
+HOwever above isn't very good - as it only has a single IP address - and what if IP address changes - hence this is a better config:
+<code>
+v=spf1 include:spf.reg365.net ~all
+</code>
+use '~all' instead a soft fail, instead of '-all' for a hard fail.
+Here is another example:
+<code>
+v=spf1 include:_spf.google.com –all
 </code>