Email Marketing Software for Agencies

Scale Your Agency with White-Label Email Marketing

Email marketing automation software is an essential tool for digital marketing agencies, enabling streamlined automation, personalization, and performance measurement for client campaigns.

Beyond standard features like lead capture, list management, drip campaigns, split testing (A/B Testing), and detailed reporting, an effective email marketing solution tailored for agencies must also support advanced capabilities that facilitate multi-client management, security, and scalability.

Multi-Tenancy & Client Management

Designed to accommodate agencies managing multiple customers on a single installation, ensuring seamless account isolation and control.

Multiple-Account Handling

Host multiple independent client accounts within a single Interspire installation.

Per-User Email Templates

Agencies can assign custom templates to specific users, preventing visibility across accounts.

Per-User Statistics & Reporting

Clients can view, print, and export their own analytics, including email opens and clicks.

Independent User Accounts

Each client gets their own lists, autoresponders, templates, and contacts.

Client Reporting

Agencies can track and generate reports for each user account individually, providing insights into performance metrics on a per-user basis

White-Labeling & Custom Branding

For agencies looking to resell email marketing services under their own brand, Interspire provides complete customization.

Full White-Label Support

Remove Interspire branding entirely and replace it with agency branding.

Access to Unencrypted Source Code

Modify aspects of the platform to fit specific business and client needs (excluding license validation).

Customizable GUI & Logos

Agencies can modify the interface, logos, and text to match their brand identity.

System Messages

Display custom messages, such as maintenance alerts, on the dashboard for all users

“Interspire is the most complete email marketing solution in the market. Setting up a campaign and managing it is really simple and intuitive. It can integrate easily with other products that we or our clients have and can be white-labelled, all the while staying compliant with key regulations such as HIPAA, PIPEDA, etc.

As the source code is available it makes it really easy to tweak the software and make it an exact fit for your organization. If you’re going down that path, the support team is highly skilled and ever ready to guide your through the process.

Among all the tools we have considered for email marketing Interspire, by far, is the best!”

Sumeru K., Doxim

Fine-Grained Access & Control

Agencies need flexibility in how clients and team members interact with the platform. Interspire offers custom role-based permissions and user restrictions.

Fine-Grained Access Control

Define groups and assign permissions to restrict access to certain features (e.g., allowing template creation but restricting campaign sending).

Email Speed Throttling

Set email sending limits per user (hourly, monthly, or total limits).

Per-User SMTP Settings

Assign dedicated mail servers for individual clients or require users to configure their own SMTP settings.

Restrict Number of Lists

Limit the number of contact lists users can create or prevent new list creation entirely.

Scalability & Cost-Effectiveness

A self-hosted, one-time purchase model designed to provide agencies with unlimited scalability at predictable pricing.

Scalable Pricing Structure

Agencies can onboard multiple clients without having to worry about an unpredictable bill.

Unlimited Email Sending

No imposed limits on the number of emails an agency can send.

Unlimited Subscribers & Lists

No restrictions on the number of contacts or email lists.

Scale & Performance

The platform can support thousands of users and send millions of emails, thanks to its multi-tenant architecture.

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Final Thoughts

With white-label customization, full multi-tenancy support, granular access control, and cost-effective scalability, Interspire Email Marketer is built to help agencies resell and manage email marketing services efficiently. Whether operating as an email marketing provider or handling multiple client accounts, agencies can scale without recurring fees and maintain full control over their infrastructure.