Go + Next.jsProduction-ready cold email SaaS

Stop spending months building your SaaS. Start with the code.

The complete source code for a production-ready cold-email SaaS. Campaigns. Mailbox warmup. Unified inbox. AI replies. Stripe. OAuth. Auth. Verification. Webhooks. Docker deployment.

$997 once. No subscription. No locked platform. You own the source code.

Buy now ($997)

Build your brand on top of it. Modify everything. Deploy it anywhere. Ship sooner.

Cleanmails Dashboard
background

Built with
modern stack

GoNext.jsReactPostgreSQLRedisStripeSupabaseResendClerkRailwayGoNext.jsReactPostgreSQLRedisStripeSupabaseResendClerkRailway

See it in action

Watch a quick walkthrough of the Cleanmails dashboard and features.

Video coming soon

Want to self-host Cleanmails?

Deploy on your own servers with full control. Visit coldmail.host

Everything you need to run cold email at scale.

campaign_service.go — cleanmails
package campaign
type CampaignService struct {
repo Repository
mailer *mail.Client
warmup *warmup.Service
}
func (s *CampaignService) SendCampaign(
ctx context.Context,
campaign *Campaign,
) error {
// Verify sender reputation
if err := s.warmup.CheckHealth(ctx); err != nil {
return err
}
// Process leads with throttling
for _, lead := range campaign.Leads {
s.sendToLead(ctx, lead)
}
mainGo 1.22
UTF-8LF

Built with Go backend and Next.js frontend. Campaigns, warmup, unified inbox, AI replies — all production-tested and ready to deploy.

Ship faster. Skip months of development. Launch your SaaS in days.

Full ownership. Modify everything. Deploy anywhere. No vendor lock-in.

Your cold email stack, built.
Campaigns, warmup, inbox — all included.

Campaign management dashboard

Email campaigns. Send personalized sequences with smart scheduling and throttling.

Mailbox warmup. Automatically warm up your sending domains to maximize deliverability.

Unified inbox. All replies in one place. Never miss a hot lead again.

AI replies. Let AI handle initial responses while you focus on closing.

Skip months of building.
Get production-ready code today.

Why spend 6+ months building auth, payments, email infrastructure, and deployment from scratch? Get a complete, battle-tested codebase that handles all the boring stuff so you can focus on what makes your product unique.

Go

Fast, typed backend

Next.js

Modern React frontend

Docker

Deploy anywhere

Full-stack included.
Stripe. OAuth. Webhooks. Verification.

Multi-region email sending. Send from multiple mailboxes across regions. Built-in rotation and throttling to protect your sender reputation.

Stripe payments ready. Subscriptions, usage-based billing, webhooks — all wired up. Just add your Stripe keys and go.

$997 One-time payment

Email verification built-in. Verify emails before sending to keep bounce rates low and deliverability high.

Simple pricing. Own everything.

Source Code License

One-time purchase. Full ownership.

$997 one-time
Buy now ($997)
  • Complete Go + Next.js codebase
  • Email campaign management
  • Mailbox warmup system
  • Unified inbox
  • AI-powered replies
  • Stripe billing integration
  • Google & Microsoft OAuth
  • Email verification
  • Webhook handlers
  • Docker deployment ready
  • Lifetime updates
  • Discord community access

What you get

Everything to launch your SaaS

No recurring fees. Pay once, own forever. No monthly subscriptions, no usage limits, no vendor lock-in.

Deploy anywhere. Your servers, your rules. AWS, GCP, DigitalOcean, or your own hardware.

Modify everything. Full source code access. Add features, change the UI, integrate with your tools.

Build your brand. White-label ready. Remove all traces and make it 100% yours.

Buy now ($997)

Frequently Asked Questions

Have more questions? Reach out on Discord

Stop building from scratch. Start shipping.

Get the complete source code for a production-ready cold email SaaS. Go + Next.js. Deploy anywhere. Own everything.

Buy now ($997)