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
From the left sidebar, click Email Accounts.
In the top-right corner, click Purchase Mailbox.
This opens the mailbox purchase modal.

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.
Choose how many mailboxes you want to purchase:
10
20
50
100
Custom
You can also expand Mailbox-to-Domain Ratio if needed.

Select your preferred provider:
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
Enter your base domain name.
SmartSenders will automatically generate domain variations for you.
Example:
If you enter testing, the system generates variations like:
testing-mail1.com
testing-update10.com
testing-120.com
Select the domains you want.
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.

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)
You can:
Add multiple personas
Apply different personas to different domains
Click Add Another Persona to create more
Once done, click Review Order.

You’ll now see:
Forwarding domain
Profile image
Name
Provider
Email address
Assigned domain
You can delete individual mailboxes if needed.
Breakdown includes:
Domains (Billed Yearly)
Mailboxes (Billed Monthly)

On the payment screen, review:
Number of domains
Number of mailboxes
Total price
Price breakdown
Important notes:
Mailboxes auto-renew monthly.
Domain fees are non-refundable.
Additional mailboxes cannot be added to an existing domain after purchase.
Mailboxes are delivered within 24–48 hours.
Click Make Secure Payment to complete your 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.
Note: This article focuses on the new version of purchasing via SmartSenders. You can visit this article to check out the older version.
Yes. Click “Old purchase flow?” on the first screen to switch back. Both versions are supported.
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.
It controls how many mailboxes are assigned per domain.
Example:
5:1 → 20 mailboxes = 4 domains
Spreading mailboxes across domains protects sender reputation.
Most users should keep it.
Lower ratios (3:1 or 2:1) improve deliverability but increase domain costs.
The system automatically rounds up and shows the exact distribution before you proceed.
ESP = Email Service Provider.
Google (Gmail) → widely trusted
Outlook → strong for enterprise
SMTP → flexible, advanced setups
If unsure, choose Google or Outlook.
It reflects the currently top-ranked vendor for that provider based on performance. Rankings are reviewed regularly.
No. SmartSenders registers and sets up new domains for you during purchase.
Based on your mailbox count and ratio, the system selects the correct number automatically.
You can swap or deselect them before proceeding.
It’s where recipients land when they click links in your emails (usually your main website).
It is different from your sending domains.
A persona is the sender identity (first name, last name, optional profile photo).
You can assign different personas to different domains.
Yes. On the Review step, you can remove individual mailboxes.
Each domain must retain at least one mailbox.
Mailboxes → monthly
Domains → annually
Your first payment includes 1 month of mailboxes + 1 year of domains.
Provisioning starts immediately after payment and typically takes 24–48 hours.
You can track status in SmartSenders Orders.