Choosing the right SPF management tool can feel overwhelming. Digital agencies, in particular, juggle multiple clients, each with their own mail services—from Google Workspace and Microsoft 365 to HubSpot, Salesforce, and niche ESPs. Add in the strict SPF 10 DNS lookup limit, and suddenly what should be simple email authentication becomes a daily deliverability headache.
Two of the most prominent solutions to this problem are AutoSPF and DynamicSPF by Dmarcduty. Both aim to eliminate SPF failures, streamline domain authentication, and ensure your clients’ emails land where they belong—in the inbox.
But which is best for your agency? In this expanded showdown, we’ll explore both tools in depth: their features, pricing, user experience, and integrations. By the end, you’ll have a clear roadmap to the right unlimited SPF solution for your needs.
Why SPF Management Is a Critical Challenge for Agencies
SPF (Sender Policy Framework) validates which servers are authorized to send email for a domain. On paper, it’s straightforward: publish an SPF record in DNS listing your mail providers.
In practice, agencies know it’s messy:
- Multiple clients = dozens of mail providers. Each adds include: mechanisms to SPF.
- SPF limit = 10 lookups max. Add too many providers and the record breaks.
- Manual edits = high risk. Every DNS change carries the chance of typos, misconfigurations, or overwriting critical records.
- Deliverability impact = huge. Misconfigured SPF leads to authentication failures, rejected messages, or client complaints of “emails going to spam.”
That’s why unlimited, automated SPF management is now considered mission-critical infrastructure for agencies.
AutoSPF vs DynamicSPF: Key Features Breakdown
AutoSPF
AutoSPF is built for agencies first. It automatically flattens and manages SPF records behind the scenes, ensuring compliance regardless of how many mail providers you add. Designed with non-technical account managers in mind, AutoSPF makes SPF management feel effortless while still offering power and scalability for technical users.
Key Highlights:
- Unlimited SPF flattening – AutoSPF eliminates the 10-lookup limitation by dynamically rewriting SPF records.
- Real-time updates – If a mail provider changes IPs, AutoSPF instantly adapts—no manual DNS changes needed.
- Agency dashboard – Manage unlimited client domains from one intuitive portal.
- Error prevention – Built-in safeguards against record length issues, duplication, or syntax errors.
- Scalability – Whether you manage 5 clients or 500, AutoSPF is designed to grow with you.
DynamicSPF by Dmarcduty
DynamicSPF takes a more technical, API-centric approach. It’s geared toward IT teams or agencies with dedicated technical staff who prefer building custom integrations. While powerful, it requires more hands-on management and technical knowledge.
Key Highlights:
- API-driven SPF distribution – Manage SPF records programmatically across multiple systems.
- Lookup load balancing – Helps mitigate the 10-lookup issue by spreading entries across sub-records.
- Granular control – Ideal for teams who want precise, manual control over every domain and record.
- Enterprise-focused design – Strong fit for IT departments managing large-scale infrastructures.
Feature-by-Feature Comparison
AutoSPF: Unlimited Flattening Made Simple
AutoSPF is the most “set-and-forget” SPF solution available. Agencies often run into issues when adding services like Mailchimp, Salesforce, or niche ESPs for different clients. With traditional SPF, each new include pushes you closer to the 10-lookup ceiling. AutoSPF solves this by continuously flattening and rewriting SPF records to stay compliant.
- Practical Agency Example: Imagine an agency running campaigns for 20 clients, each using 4–6 different senders. Without AutoSPF, you’d be manually managing 100+ SPF edits. With AutoSPF, everything updates automatically—zero micromanagement.
DynamicSPF: API-Driven SPF Management
DynamicSPF appeals to technical users who prefer code over dashboards. It distributes SPF entries across sub-records and requires API calls for management. While this gives IT staff precise control, it adds complexity for agencies that need speed and scalability.
- Practical Agency Example: An enterprise IT team managing email for 50 subsidiaries might prefer DynamicSPF’s API-first model to integrate SPF record changes into their existing DevOps pipeline.
Pricing Comparison
- AutoSPF: Flat, predictable pricing with unlimited lookups included in all plans. Tailored for agencies managing many domains, so you don’t pay penalties for growth.
- DynamicSPF by Dmarcduty: Usage-based pricing, often tied to API calls or per-domain management. This can be cost-efficient at small scale but becomes unpredictable for agencies managing dozens of domains.
Verdict: Agencies needing cost stability and predictable scaling will find AutoSPF far more budget-friendly.
User Experience
- AutoSPF:
- Clean dashboard built for agencies.
- Non-technical account managers can onboard clients with minimal DNS expertise.
- Intuitive setup process with real-time monitoring and error alerts.
- DynamicSPF:
- Developer-friendly, API-first model.
- Requires technical knowledge to configure and manage effectively.
- Better fit for enterprise IT departments than for creative or marketing agencies.
Integrations
- AutoSPF: Works seamlessly with marketing and sales stacks—Google Workspace, Microsoft 365, HubSpot, Salesforce, Mailchimp, SendGrid, AWS SES, and more. Agencies can manage authentication without worrying about compatibility.
- DynamicSPF: Stronger on enterprise IT pipelines, integrating into DevOps environments, CI/CD workflows, and API-driven infrastructures.
Alternatives Worth Considering
If AutoSPF or DynamicSPF don’t fit your workflow, here are other options:
- PowerSPF – An older flattening solution, but lacks automation for modern use.
- DMARCian SPF Tools – Best for organizations already using DMARCian’s monitoring suite.
- EasySPF – Basic tool for single-domain businesses. Limited scalability.
- Cloudflare Workers – DIY solution for technical teams comfortable scripting custom SPF handling.
Final Verdict: AutoSPF vs DynamicSPF – Which One is Right for You?
- Choose AutoSPF if:
- You’re a digital agency managing multiple client domains.
- You want unlimited SPF flattening without technical overhead.
- You value a predictable, flat-rate model that scales with your agency.
- Choose DynamicSPF if:
- You’re an enterprise IT team with in-house developers.
- You want API-driven customization and full control over every record.
- You’re comfortable managing SPF at the code level.
For most digital agencies, AutoSPF is the clear winner. Its unlimited flattening, intuitive dashboard, and client-ready usability make it the #1 SPF management tool for scaling email deliverability without risk.
👉 Start with AutoSPF today to eliminate SPF headaches and keep your clients’ emails landing in the inbox.
Frequently Asked Questions (FAQs)
1. What happens if my SPF record exceeds 10 DNS lookups?
Your SPF record will fail, meaning receiving mail servers may reject or mark emails as spam. AutoSPF prevents this automatically by flattening records and staying compliant.
2. Can AutoSPF or DynamicSPF handle multiple clients?
Yes. AutoSPF is purpose-built for agencies handling dozens or hundreds of client domains. DynamicSPF also supports multiple domains but requires API setup for each.
3. Do I still need DMARC if I use AutoSPF or DynamicSPF?
Yes. SPF is one layer of email authentication. DMARC adds policy enforcement and reporting. AutoSPF ensures SPF always passes, supporting a strong DMARC rollout.
4. Is AutoSPF suitable for non-technical teams?
Absolutely. AutoSPF was designed for agencies where account managers—not IT staff—handle client onboarding. Its dashboard is intuitive and client-friendly.
5. Which tool is more cost-effective for agencies?
AutoSPF’s flat-rate, unlimited lookup model is far more predictable for agencies managing growth. DynamicSPF may be cheaper for small, technical setups but gets costly at scale.