We will go over how SPF works with subdomains in this article. How SPF policy discovery works As discussed in the How DMARC Works With Subdomains...
When you use various online tools to check a domain's DMARC record, you might run into one of the errors: "No DMARC record found" "DMARC record not...
Can you have multiple SPF records on a single domain? The answer is no: a domain MUST NOT have multiple SPF records, otherwise SPF fails with...
An SPF record is a TXT record published in the DNS by the domain owner, which specifies a whitelist of IP addresses allowed to send emails on behalf...
When troubleshooting email delivery issues, you might run into some cryptic SPF error on the receiving email server along the lines of: SPF PermError:...
When the SPF PermError: Too Many DNS Lookups issue strikes, your email deliverability can take a bad hit due to SPF fail. We will explain how...