Two clear choices. Start free for 14 days on either — no credit card needed.
You don't set up anything. We send your emails through our managed servers. You just buy sending credits — 1 credit = 1 email. Simple.
👉 Best if you want it easy.
See System SMTP pricesConnect your own SMTP or Amazon SES and send unlimited email through it. You pay a flat yearly fee based on how many contacts you have — not per email.
👉 Best if you want to save money at high volume.
See Own SMTP pricesThink of it like getting around town. Same destination (the inbox), two ways to travel.
You just hop in — we drive. You pay for each trip (each email). Nothing to own, nothing to maintain. Perfect when you don't travel a lot.
✅ Easiest · pay per email · no setup
You bring your own car (your SMTP / Amazon SES). Pay one yearly fee, then drive as much as you want (send unlimited). The more you send, the more you save.
✅ Cheapest at scale · unlimited · your control
A quick, plain-English walkthrough of both options and which to pick. See it live at app.gomailbox.net.
| 🚕 System SMTP (Lite) | ₹5,499 / month | = ₹65,988 / year |
| 🚗 Own SMTP (Growth) + Amazon SES | ₹6,999/yr + ~₹5,000/yr sending | = ~₹12,000 / year |
👉 Own SMTP saves you about ₹54,000 a year at this volume.
Small sender or just want it easy? Start with System SMTP. Sending a lot? Own SMTP wins.
Managed sending on our servers. Prices are per month. 1 sending credit = 1 email. Every plan includes the builder, automation, segments, tracking, warmup & support.
Try it risk-free
Best for small lists
For growing senders
For serious marketers
For high volume
For enterprises
Connect your own SMTP / Amazon SES and send unlimited email. Prices are per year and based on your number of contacts — you never pay us per email.
Try it risk-free
Best for small business
For growing teams
Best for agencies
For enterprises
One-click built-in integrations — or any standard SMTP server. Route all your email through the provider you already trust.
API & SMTP. The cheapest way to send at scale — from ~₹8 per 1,000 emails.
API & SMTP. Developer-friendly delivery with strong analytics.
API & SMTP. Reliable high-volume sending, trusted worldwide.
API & SMTP. Enterprise-grade deliverability and insights.
API & SMTP. Low-cost sending for marketing at scale.
API & SMTP. Fast, high-throughput delivery.
Secure Google OAuth for low-volume, high-trust sending.
Your host, VPS, or corporate relay — standard SMTP works out of the box.
Send straight from your own Linux server's local mailer.
Sending hundreds of thousands or millions of emails? Pay your provider's raw rate instead of per-email markup.
Route many clients through one Amazon SES account, keep full control, and resell under your brand.
Send marketing + transactional email through the same relay you already use in production.
Own your sending IP and domain reputation end-to-end — no shared pools.
Pick the SES region or provider closest to your audience for best deliverability.
Predictable flat yearly fee + cheap raw sending = the lowest total cost at scale.
You pay GO MAILBOX one flat yearly fee, and your email provider only their cheap raw rate. No per-email markup — the savings grow with every email you send.
A realistic comparison for a high-volume sender.
| Approach | What you pay | Monthly cost |
|---|---|---|
| Managed credits (System SMTP) | Per-email credits | ≈ ₹1,20,000+ |
| Own SMTP — Pro plan + Amazon SES | ₹14,999/yr (≈₹1,250/mo) + SES ~₹8/1,000 | ≈ ₹9,250 |
You save up to ~90% at high volume with Own SMTP. 🎉
Amazon SES is ~$0.10 per 1,000 emails. Figures are illustrative — your provider's rate applies.
| 🖥 System SMTP | 🔌 Own SMTP | |
|---|---|---|
| Setup needed | None — we handle it | Connect your SMTP/SES once |
| How you pay | Per email (credits), monthly | Flat fee by contacts, yearly |
| Sending limit | Up to 700,000 / month | Unlimited |
| Best for | Ease & getting started fast | Lowest cost at high volume |
| Deliverability tools | Included | Included |
| Free trial | 14 days | 14 days |
Sending 2M+ per month, or want a fully white-label reseller account with your own branding and pricing? We'll tailor a plan with dedicated IPs and pooled pricing.
Talk to salesSystem SMTP = we send your emails on our servers, you buy credits (1 credit = 1 email). Own SMTP = you connect your own SMTP or Amazon SES and send unlimited, paying a flat yearly fee based on contacts.
One credit sends one email. If a plan gives 100,000 credits, you can send 100,000 emails that month. Simple.
For small volumes, System SMTP is easiest. For large volumes, Own SMTP is far cheaper — you pay your provider's raw rate (e.g. Amazon SES ~₹8 per 1,000) plus a flat yearly platform fee.
Yes — you connect a provider like Amazon SES, Mailgun, SendGrid, SparkPost, Elastic Email, or any standard SMTP server. We give you one-click integrations for the popular ones.
Yes — 14 days free on both System SMTP and Own SMTP, no credit card required.
Sign up free, then upgrade any time from your account. Pay by card, UPI or bank transfer. Questions? Contact us or call +91-88005 67676.