Sender Policy Framework (SPF) is TXT records placed into a domain's DNS settings to help protect your domain against spoofing and help prevent your outgoing messages from being marked as spam.

SPF specifies the mail servers that are allowed to send an email for your domain.

Receiving mail servers use SPF to verify that incoming messages that appear to come from your domain were sent by servers authorized by you.

Without SPF, messages sent from your organization or domain are more likely to be marked as spam by receiving mail servers.

To create a TXT record for the outgoing sending domain with the following details:

"v=spf1 include:spf.antispamcloud.com -all"

 

Since there is an existing SPF, simply add

  • a:6205.submission.antispamcloud.com
  • a:release.antispamcloud.com

to your existing record.

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