Ark: White Label Email API for SaaS
Ark helps SaaS companies provide white label email capabilities to their users. It is designed for teams that need to manage multi-tenant domain isolation.
At a glance
- Category
- Software Development
- Best for
- SaaS Companies, Software Development Teams, CRM Platforms, Helpdesk Software Providers, Invoicing Tool Developers
- Pricing
- Plans start at $24/month (billed annually). A 7-day free trial is available without a credit card.
- Key use cases
- CRM Email Branding, Helpdesk Notifications, Invoicing and Billing, Scheduling Confirmations
- Integrations
- Python SDK, Node.js SDK, Ruby SDK, Go SDK, MCP Server
- Official website
- arkhq.io
Ark is a white label email API designed for software platforms that send emails on behalf of their customers. It uses a multi-tenant architecture where each customer is isolated with their own sending domain, reputation, and analytics.
It is built for platforms such as CRMs, helpdesks, and invoicing tools. The service supports email delivery tasks, including automated SPF, DKIM, and DMARC authentication, and provides guided DNS onboarding to help end-users connect their domains.
Buyers should confirm that the domain and email volume limits of the available plans align with their growth projections.
Key Features
Provides per-customer domain isolation, where each tenant has their own sending domain, suppression lists, and analytics.
Supports automated SPF, DKIM, and DMARC setup to assist with email deliverability.
Detects a customer's DNS provider and provides steps or automatic configuration to connect domains.
Supports tracking of deliveries, opens, clicks, and bounces on a per-customer basis.
Provides an MCP server with 26 tools that allow AI agents to manage emails, domains, and deliveries.
Use Cases
Supporting users in sending proposals and follow-ups from their own business domains.
Sending ticket notifications and agent replies from a customer's support domain.
Sending payment reminders and receipts from a customer's billing domain with authentication.
Supporting booking confirmations and reminders sent from a customer's brand.
Best For
Integrations
Pricing
Plans start at $24/month (billed annually). A 7-day free trial is available without a credit card.
FAQ
It is a service that allows software platforms to send emails on behalf of their customers using the customers' own verified domains.
Ark provides guided DNS onboarding that detects the customer's DNS provider and helps them configure records for authentication.
The Starter plan supports up to 10 domains, Growth supports up to 100, and Scale supports up to 1,000. Custom pricing is available for more than 1,000 domains.
Source category: Software Development
Source subcategory: Email API
