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security:email [2023/07/03 17:33] – created gerardorourkesecurity:email [2024/09/29 18:04] (current) – [SFP] gerardorourke
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     * Install Powershell script - <code>Install-Module DomainHealthChecker</code>     * Install Powershell script - <code>Install-Module DomainHealthChecker</code>
     * Run the command - <code>Invoke-SpfDkimDmarc -Name <domain></code>     * Run the command - <code>Invoke-SpfDkimDmarc -Name <domain></code>
 +
 +
 +===== SFP ======
 +
 +https://www.cloudflare.com/learning/dns/dns-records/dns-spf-record/
 +
 +Example - DNS TXT record for orourke.tv is the below - which includes the SMTP IP address for smtp.reg365.net
 +<code>
 +v=spf1 ip4:85.233.160.17 –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>
  
  
  
  • security/email.1688402018.txt.gz
  • Last modified: 2023/07/03 17:33
  • by gerardorourke