What Is Dynamic SPF Management?

Dynamic SPF management (also known as automatic SPF management) prevents you from manually updating and tirelessly maintaining your domain's SPF record because an SPF flattening tool/service automatically manages it for you when any changes are made.

SPF flattening takes an existing SPF record that has multiple nested records and flattens the record to the point the record only contains a flat list of IP addresses or IP address ranges. Why do this? It's standard practice to make an SPF record contain fewer than 10 DNS lookups (SPF mechanism limit) and avoid the Too Many Lookups Error that'll cause all emails to be rejected.

To eliminate the 10-limit headaches, your best option is to look for a service that both flattens the SPF record and automatically monitors all of your senders, then updates your flattened SPF record.

Be sure to use a service that updates your SPF record automatically when providers add new IPs or mechanisms or you need to add a new sender. Flattening without automatic management won't reflect these changes, and you'll have to manually monitor and constantly update your flattened record, taking your attention away from your business.

With MxToolbox's SPF Flattening feature, we automatically flatten SPF records when you add new addresses/IPs. Our SPF Flattening works by rewriting your SPF record. If you have more than 10 lookups included in your SPF record, the later lookups won't be executed, causing some of your legitimate email senders to bounce. Our SPF Flattening not only saves you countless hours of time, it also:

• Reviews the Verified Email Sources and manually added IP addresses currently in your SPF record.
• Traverses all the email senders included in your SPF record to generate a complete record of all needed IP ranges.
• Removes duplicate senders.
• Consolidates overlapping IP ranges.
• Crafts a compliant SPF record that covers all Verified Senders.
• Monitors for new email senders and automatically makes suggestions to include them in your SPF record.
• Provides ongoing sender verification.

MxToolbox's SPF Flattening is automatic and adaptive, enabling you to specify new Verified Email Sources and to have a new SPF record almost instantaneously. This dynamic SPF management option will oversee your SPF setup so you don't have to.