Your Automatic Hassle-free SPF Flattening tool
A One-Click Automatic SPF flattening tool for your Sender Policy Framework Record. Instantly flatten SPF records for multiple domains and accounts, and stay updated on uninformed changes to authorized IPs. Too many DNS lookups? Not anymore! We make sure you don’t exceed the 10 DNS lookup limit.
SPF flattening is the process of converting an SPF record into a format that contains fewer than 10 DNS lookups. It works by replacing all the domains in the SPF record with their IP addresses, which eliminates the need for multiple DNS lookups. It can be useful for troubleshooting, and compressing SPF records.
Flattening SPF helps domain owners restrict the number of DNS lookups to stay below the RFC-specified limit of 10. This ensures proper functioning of SPF authentication system, and prevents unwanted errors.
Your SPF record instructs email receivers to perform DNS lookups for every included record. When the number of lookups exceeds the limit of 10, SPF breaks for your email. This may result in false negatives, email deliverability issues and return an error result.
Each vendor brings in their own set of complications by adding more records to your SPF, leading to more lookups! When you are using multiple vendors there is no way around this.
9 out of 10 domain owners face email deliverability issues because of the 10 DNS lookup limit for SPF, and they have no clue about what is going wrong!
A tried and tested method – SPF record flattening is a hassle-free solution to mitigate this error that shows instant results and works even for organizations using multiple email vendors.
During the SPF flattening process, SPF records are replaced with their subsequent IP addresses that reduce the number of lookups during checks.
“a”, “mx”, and “include” mechanisms are removed as a part of the SPF compression process to decrease redundancy and lookups even further.
When you flatten SPF record, the record is overall much more simplified and straightforward, reducing errors and helping streamline the authentication process.
During flattening the original SPF record’s include mechanisms are replaced by IP addresses to reduce the frequency of DNS lookups.
example.com. IN TXT “v=spf1 include:_spf.company.com ~all”
Number of DNS lookups: 4
example.com. IN TXT “v=spf1 ip4:192.168.0.1 ip4:10.0.0.1 ip4:172.16.0.1
ip4:203.0.113.45 ip4:87.65.43.21 ip6:2001:0db8:85a3:0000:0000:8a2e:0370:7334 ip6:2001:0db8:1c0d:0000:0000:0e3f:0a33:9a72 ~all”
Number of DNS lookups: 0
If your email service provider changes their infrastructure, you’re going to have to change your SPF records accordingly. Every single time.
While manually flattening SPF will reduce the number of DNS lookups significantly, your record will be lengthy and may exceed the character limit – leading to error.
On implementing an automatic SPF flattening tool, you will experience the following benefits:
Key Features
