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How to Purchase Fresh Mailboxes in SmartSenders (New UI Version)

Learn how you can buy deliverability-optimized fresh mailboxes via SmartSenders in a few simple steps.

This guide walks you through the new SmartSenders purchase flow inside Smartlead, so you can quickly buy and activate fresh mailboxes without confusion.

The updated flow is designed to:

  • Make mailbox selection clearer

  • Show transparent pricing before checkout

  • Reduce configuration errors

How To Add Fresh Domain and Mailboxes via SmartSenders?

Step 1: Navigate to Email Accounts

  1. From the left sidebar, click Sender Accounts » Email Accounts.

In the top-right corner, click Purchase.

This opens the mailbox purchase modal.

Step 2: Choose Mailbox Type

You'll see two options:

  • Pre-Warmed Mailboxes

  • Fresh Mailboxes

Click Get Fresh Mailboxes.

Fresh mailboxes allow you to:

  • Start with brand-new inboxes

  • Control the sending strategy

  • Warm them gradually for long-term deliverability


If you're looking to buy pre-warmed mailboxes, here's a guide to help you get started.

Once you click on Fresh Mailboxes, you’ll get two options:

  • Either add mailboxes to an existing domain (if you pick this, check out the “How to add mailboxes to an existing domain”)

  • Or, buy new domains and mailboxes (for this, continue to step 3 below)

Step 3: Configure Your Setup

3.1 Select Mailbox Count

Choose how many mailboxes you want to purchase:

  • 10

  • 20

  • 50

  • 100

  • Custom

You can also expand Mailbox-to-Domain Ratio if needed.

3.2 Choose Your Email Service Provider (ESP)

Select your preferred provider:

  • Google

  • Outlook

  • SMTP

You can click View Vendors under each option to see available providers (see above screenshot).

Once selected, click Continue.

Note - If vendor selection was not done, it will pick the default vendor

Step 4: Set Up Your Domains

Enter your base domain name.

SmartSenders will automatically generate domain variations for you.

Example:
If you enter
acme, the system generates variations like:

  • boostacme.com

  • acmeprime.com

  • acmecrown.com

What to do here:

  • Select the domains you want. The page shows how many you need based on your mailbox count and ratio (e.g., “You need 2 domains”).

  • Use Find More if you'd like additional variations.

  • Review pricing at the bottom.

Domain Pricing

  • Domains are billed yearly.

  • Example: 5 domains × $13/year = $65/year.

Click Continue.

Step 5: Create Mailbox Personas

Now define the sender identities your recipients will see.

For each persona, enter:

  • First Name

  • Last Name

  • Apply Persona To (All Domains or specific domain)

  • Profile Photo — uploading a photo is required for each persona.

You can:

  • Add multiple personas

  • Apply different personas to different domains

  • Click Add Another Persona to create more

Once done, click Review Order.

Step 6: Review Order

You'll now see:

Mailbox Details

  • Forwarding domain

Generated Mailboxes

  • Profile image

  • Name

  • Provider

  • Email address

  • Assigned domain

You can delete individual mailboxes if needed.

Cost Summary

Breakdown includes:

  • Domains (Billed Yearly)

  • Mailboxes (Billed Monthly)

Step 7: Make Payment

On the payment screen, review:

  • Number of domains

  • Number of mailboxes

  • Total price

  • Price breakdown

Important notes:

  • You can check your mailbox password by navigating to Email Accounts > Select Email Account > General Tab > Personal Details.

  • To log in to your mailbox, you can find the authentication token on the email accounts listing page.

  • Mailboxes are billed monthly — we’ll charge you each month you keep them. Mailboxes remain active for the period of maximum 12 months. Mailboxes expire at the end of month 12. If you delete a mailbox mid-month, you’ll be billed through that month with no proration, and there’ll be no charge from the following month onwards.

  • Domains are a one-time yearly payment and run for a fixed 1-year term from the date of purchase — there’s no renewal. At the end of 1 year, the domain and all its mailboxes will expire. Don’t worry though — you’ll see an upcoming-expiry notice on your Email Accounts page well before it happens, so you have time to plan. You can purchase fresh domains and mailboxes, or use the in-product Replace flow to get new mailboxes with similar-looking domains.

  • Domain fees are non-refundable.

  • You can now add more mailboxes to a domain you already own — see “Can I add more mailboxes to a domain I already own?” in the FAQs below.

  • Mailboxes are delivered within 24–48 hours.

Click Make Secure Payment to complete your purchase.

Card Verification (3D Secure)

For added security, some card payments during checkout may require 3D Secure (3DS) verification — a quick confirmation step from your bank before the payment goes through. This is a standard security check and does not change your order. Learn more in our 3D Secure article.

After Purchase

Once payment is successful:

  • Domains are registered.

  • Mailboxes are provisioned.

  • You can track your orders under Email Accounts >> SmartSender Orders

Remember to start warmup before launching campaigns.

SmartSenders - FAQs

1. How many mailboxes should I buy?

It depends on your campaign volume.

  • 10–20 → smaller setups

  • 50+ → scaling or multiple campaigns

You can also choose Custom and enter any number (minimum 1).
For proper rotation, 5+ mailboxes is recommended.

2. What is the mailbox-to-domain ratio?

It controls how many mailboxes are assigned per domain.

Example:
5:1 → 20 mailboxes = 4 domains

Spreading mailboxes across domains protects sender reputation.

3. Should I change the default 5:1 ratio?

Most users should keep it.

Lower ratios (3:1 or 2:1) improve deliverability but increase domain costs.

4. What if my mailbox count doesn’t divide evenly?

The system automatically rounds up and shows the exact distribution before you proceed.

5. What is an ESP and which one should I choose?

ESP = Email Service Provider.

  • Google (Gmail) → widely trusted

  • Outlook → strong for enterprise

  • SMTP → flexible, advanced setups

If unsure, choose Google or Outlook.

6. What does “Recommended this week” mean?

It reflects the currently top-ranked vendor for that provider based on performance. Rankings are reviewed regularly.

7. Do I need to bring my own domains?

No. SmartSenders registers and sets up new domains for you during purchase.

8. Why are domains auto-selected?

Based on your mailbox count and ratio, the system selects the correct number automatically.
You can swap or deselect them before proceeding.

9. What is a forwarding domain?

It’s where recipients land when they click links in your emails (usually your main website).
It is different from your sending domains.

10. What is a mailbox persona?

A persona is the sender identity (first name, last name, and a required profile photo).
You can assign different personas to different domains.

11. Can I delete mailboxes before purchasing?

Yes. On the Review step, you can remove individual mailboxes.
Each domain must retain at least one mailbox.

12. How am I billed?

  • Mailboxes → monthly

  • Domains → annually

Your first payment includes 1 month of mailboxes + 1 year of domains.

13. How long does provisioning take?

Provisioning starts immediately after payment and typically takes 24–48 hours.
You can track status in SmartSenders Orders.

14. Can I add more mailboxes to a domain I already own?

Yes. You can now purchase additional mailboxes on a domain you already own directly from Email Accounts — there’s no need to buy a new domain. Open the domain, choose the option to add more mailboxes, and complete payment the same way as a new order.



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