"SPF PermError: too many DNS lookups" is a common error seen in many SPF (Sender Policy Framework) implementations. When an often overlooked SPF 10-DNS-lookup limit is exceeded, an SPF PermError, aka SPF permanent error, is returned. SPF PermError's can affect your email deliverability…
People tend to think of setting up email authentication with DMARC, DKIM, and SPF as time-consuming and error-prone because they have to search the Web for various articles and tools to achieve a simple DMARC, DKIM and SPF setup. This can take days for those who aren't proficient in email authentica…
When the SPF record on a domain can't be correctly interpreted, SPF returns a PermError (permanent error). In contrast with an SPF TempError (temporary error), an SPF PermError requires a system administrator to take measures to rectify the issue.
Here is a list of causes of SPF PermError:
multi…
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 of the domain. When an email reaches the receiving server, the server will look up the SPF record in the DNS, and perform a check to determine if the e…
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 automatic/dynamic SPF record flattening can solve this problem below.
Nowadays, more and more services are necessary to run online operations on a day-to-…
When you first set up SendGrid to send emails, you may find there is a "Via SendGrid" warning for the email in the recipient's mailbox.
This warning means you haven't authorized SendGrid to deliver emails for you, so the mailbox provider considers that sent from SendGrid instead of your brand…
