Everything you need
to land in primary

Infrastructure built for sales teams to send cold emails at scale
Google and Microsoft 365 mailbox licenses at just $2.5

Trusted by

11xCB InsightsPolar AnalyticsSalesHawkSmartLead11xCB InsightsPolar AnalyticsSalesHawkSmartLead

"InboxKit transformed our email infrastructure. We went from 60% to 95% inbox placement in just 2 weeks."

11x

"The best email management platform we've used. Cut our email costs by 40% while improving deliverability."

CB Insights

"The DNS management and deliverability tools are game-changing. Our reply rates doubled!"

Polar Analytics

"InboxKit's Google Workspace integration saved us thousands of hours. Absolutely essential."

SalesHawk

"We manage 500+ client campaigns through InboxKit. The agency features are unmatched."

SmartLead

"InboxKit transformed our email infrastructure. We went from 60% to 95% inbox placement in just 2 weeks."

11x

"The best email management platform we've used. Cut our email costs by 40% while improving deliverability."

CB Insights

"The DNS management and deliverability tools are game-changing. Our reply rates doubled!"

Polar Analytics

"InboxKit's Google Workspace integration saved us thousands of hours. Absolutely essential."

SalesHawk

"We manage 500+ client campaigns through InboxKit. The agency features are unmatched."

SmartLead

Cold Email Infrastructure That Actually Delivers

95% Inbox Rate

Official Google & Microsoft accounts

Full API Access

Build custom workflows with webhooks

15+ Integrations

Works with every email tool

Send Thousands Daily

No limits, no throttling

Live Analytics

Track opens, clicks, replies instantly

Full Admin Control

Your domain, your rules

Unlimited Team

Add as many users as you need

Fully Automated

Setup, DNS, warmup - we do it all

Ready in 10 Minutes

Whether you’re setting up 10 mailboxes or 1,000, getting started is quick. Connect your domain with one click and start sending in minutes.

Domain Health Check

Blacklist status verified
No past abuse detected
100% fresh domains

All domains pre-screened for blacklists and past abuse. Only healthy, reputation-clean domains delivered.

Verified before purchase

Dedicated Panel for Each Domain

Every domain gets its own isolated panel. If one domain's reputation gets damaged, others remain unaffected. Complete isolation means maximum protection and zero cross-contamination.

DNS Configuration DFY

We configure DKIM, DMARC, and SPF records automatically. Your emails land in inboxes, not spam folders. Maximum deliverability without the technical headaches.

Scale with Bulk Operations

Buy multiple mailboxes at once and let AI fill in the details. Go from 1 to 100 mailboxes without the manual work. Perfect for agencies and growing teams.

How InboxKit Compares

See why leading agencies choose InboxKit for their cold email infrastructure.We're the only official Google Cloud partner in this space.

Google Cloud Partner

Official partnership with enhanced infrastructure

InboxKit
ZapMail

API Access

Full API with webhooks

InboxKit
ZapMail

Platform Integrations

Number of email platform imports supported

InboxKit
17
ZapMail
5

Add-on Mailbox

Cost per additional mailbox

InboxKit
$2.5
ZapMail
$2.5

Deliverability Rate

Average inbox placement rate

InboxKit
95%
ZapMail
No Guarantee

Auto DNS Configuration

DKIM, DMARC, SPF setup without technical knowledge

InboxKit
ZapMail

Bulk Mailbox Setup

AI-powered bulk mailbox creation and configuration

InboxKit
ZapMail

Calculate your mailbox needs

Tell us your reply goals and we'll recommend the perfect mailbox setup for optimal deliverability.

550100
35replies/day
Average on InboxKit
1%3%5%
3.5%reply rate

MAILBOXES NEEDED

67

15 emails per mailbox/day

MONTHLY COST

$150

Most cost-effective option

RECOMMENDED PLAN

Agency + 17 add-on

50 base + 17 add-on

Ready to get started with 67 mailboxes?

Agency plan + 17 add-ons • $150/month

Get Started

Simple pricing that scales with you

All the power of Google Workspace. None of the complexity.

Professional

$39/month
Included mailbox licenses10
Additional mailboxes$3.5/mailbox

Agency

POPULAR
$99/month
Included mailbox licenses30
Additional mailboxes$3.25/mailbox

Enterprise

$299/month
Included mailbox licenses100
Additional mailboxes$2.99/mailbox

All plans include

Google Workspace & Microsoft 365
Full admin control per domain
10-minute automated setup
DNS security (DKIM, SPF, DMARC)
Works with all email tools
Unlimited workspaces
API access with webhooks
95% inbox delivery rate
24/7 priority support

SCHEDULE CONSULTATION

Book your strategy call

Get personalized insights on how InboxKit can transform your cold email campaigns and achieve inbox placement rates of 95%+

Questions? We've got answers

Quick answers to common questions.

InboxKit provides official Google Workspace Business accounts with verified US IP addresses, achieving industry-leading 95% inbox placement rates. Unlike other providers, you get complete admin control over each domain, built-in 2FA security, app passwords for seamless integration with any email platform, and our proprietary warmup system that builds sender reputation automatically. Our infrastructure is built specifically for email outreach with advanced features like domain rotation, engagement tracking, and real-time deliverability monitoring.

Getting started takes less than 10 minutes with our completely automated setup process. Simply connect your domain, and our system instantly configures all DNS records (SPF, DKIM, DMARC), creates your Google Workspace account with US IP allocation, enables 2FA security, generates app passwords for your outreach tools, and begins the automated warmup sequence. Most users see dramatic deliverability improvements within the first 24 hours, with full optimization achieved after our 14-day warmup protocol.

InboxKit integrates seamlessly with 15+ major email platforms including Instantly, Smartlead, Apollo, Reply, Lemlist, HubSpot, Salesforce, and many more. Our universal app password system works with any SMTP-compatible platform, ensuring 100% compatibility. We also provide a comprehensive REST API, webhook notifications for real-time events, and SDKs for popular programming languages. Our technical team offers free integration support to help you connect any custom tools or workflows to your InboxKit infrastructure.

We provide 24/7 expert technical support across all plans via live chat, email, and phone. Our support team consists of email deliverability specialists and Google Workspace certified professionals who can resolve complex issues quickly. Agency and Enterprise plans include priority support with sub-4-hour response times, dedicated success managers for strategic guidance, and access to our technical implementation team for custom configurations. We also offer comprehensive onboarding, regular health checks, and proactive monitoring to prevent issues before they impact your campaigns.

InboxKit is fully compliant with all major email regulations including CAN-SPAM Act (US), GDPR (EU), and CASL (Canada). Our platform includes built-in unsubscribe management with one-click removal, automated compliance reporting and audit trails, mandatory header information insertion, bounce and complaint handling, and real-time compliance monitoring. We also provide legal templates for privacy policies and terms of service, regular compliance updates as regulations change, and guidance on industry best practices to keep your campaigns both effective and legally compliant.

Absolutely! Our white-glove migration service handles the complete transfer of your existing email infrastructure, campaigns, and data to InboxKit with zero downtime. The process includes: comprehensive audit of your current setup, automated data export and import, DNS record migration and optimization, campaign continuity planning, and parallel testing to ensure everything works perfectly. Most migrations complete within 24-48 hours, and our migration specialists provide step-by-step guidance throughout the process. We also offer rollback capabilities and 30 days of post-migration support to ensure a smooth transition.

Make your cold emails count

No setup rituals. No DNS sorcery. Just emails that send, land, and look damn good doing it. Get started now. Because why wait?