What is InboxKit?
InboxKit is an email infrastructure platform designed for sales and marketing teams running cold email outreach campaigns at scale. The platform automates the complete process of domain acquisition, DNS configuration, and mailbox provisioning, eliminating manual technical setup work. It provides official Google Workspace and Microsoft 365 accounts with full admin control and verified US IP addresses.
The platform handles critical deliverability components including automated SPF, DKIM, and DMARC record configuration. Users can provision multiple mailboxes across different domains through a centralized dashboard or comprehensive REST API. Setup completes in under 10 minutes with automated warmup sequences that build sender reputation.
InboxKit includes advanced monitoring features like InfraGuard protection, blacklist monitoring, DNS health checks, and inbox placement testing. The platform achieves 95% inbox placement rates through proper infrastructure setup and real-time deliverability monitoring. It integrates with 16+ email sequencing platforms including Instantly, Smartlead, Apollo, Reply, and Lemlist.
The service operates on a pay-as-you-go model starting at approximately $2.50 per mailbox per month. Teams can manage unlimited workspaces, perform bulk operations, and access 24/7 technical support from email deliverability specialists.
Pricing
Starting at $2.50/month · Subscription
Features
35 features that make InboxKit stand out.
- Auto-Responders
- Content Delivery
- Campaign Analytics
- API
- Real Time Notifications
- Third Party Integrations
- Automated domain provisioning
- DNS records automation
- SPF DKIM configuration
- DMARC setup automation
- Email warmup system
- Deliverability monitoring
InboxKit alternatives
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Frequently asked questions
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About the authors

Ana Maria Constantin, the dynamic Chief Marketing Officer at Tekpon, brings a unique blend of creativity and strategic insight to the digital marketing sphere. With a background in interior design, her aesthetic sensibility is not just a skill but a passion that complements her expertise in marketing strategy. This allows her to create campaigns that are not only visually appealing but also highly effective, a testament to her unique talent. Ana Maria Constantin’s affiliate manager experience is a testament to her dedication and growth. During this time, she improved her partnership developmen
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Alina Maria Stan is the COO and Co-Founder of Tekpon, where she has utilized her expertise in SaaS, software promotion, and lead generation since July 2020. Her role involves media buying and extensive software branding, contributing significantly to Tekpon’s market presence. Prior to founding Tekpon, Alina served as CEO of King Casino Bonus and Head of Affiliation at Extremoo Media, where she was responsible for branding and affiliate strategies. Her earlier roles include Head of Branding & Affiliation at Fable Media in Denmark and Junior CRM Manager at K.H. ApS, where she developed affiliate
LinkedIn ↗Read more about InboxKit
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