Letterbox
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Fresh ready-made mailboxes, delivered instantly.

Pre-warmed inboxes for sign-ups, marketplaces, bots and bulk operations. Pick a domain, grab credentials, and browse incoming mail right here in the panel.

Instant delivery 100% fresh 24/7 support
1.2M+ mailboxes delivered
50+ domains in stock
99.99% uptime
< 2s avg delivery

Why Letterbox

Built for sign-ups, account farming and bulk operations at scale.

⚡

Instant delivery

Buy or generate a mailbox and get login credentials in under two seconds.

🛡

Pre-warmed & clean

Every inbox passes spam-trust checks before it lands in your dashboard.

🔍

Built-in search & filters

Find any message instantly across all your mailboxes with full-text search.

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Multi-domain stock

Outlook, Hotmail, Rambler, Mail.ru and 50+ private domains, always in stock.

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Pay per piece

Top up once, spend forever. No subscriptions, no minimum order, bulk discounts above 1k.

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24/7 support

Live chat with a real human, average response under 5 minutes, refunds if anything fails.

How it works

From checkout to inbox in three steps.

1

Pick a mailbox

Choose a domain, set the password format, pick how many you need.

2

Get instant credentials

We deliver login credentials and the inbox panel link straight to your dashboard.

3

Use it anywhere

Sign-ups, OTP, marketplaces, bots, SMM. Read incoming mail in real time right here.

Pricing

Pay only for what you grab. No subscriptions.

Starter
$0.05 / mailbox
  • ✓ Min order: 10 mailboxes
  • ✓ Web panel access
  • ✓ Email support
Choose plan
Bulk
Custom
  • ✓ 1,000+ mailboxes
  • ✓ Dedicated domains & SLA
  • ✓ Personal account manager
Choose plan

Frequently asked questions

Letterbox is a legitimate email provisioning service. You are responsible for using mailboxes in compliance with the terms of services you sign up to.
Stock is rotated daily. Every mailbox is freshly created, verified and never used before delivery to your dashboard.
Open the panel and sign in with the credentials we deliver. New messages appear instantly with real-time updates — no refresh needed.
Mailboxes are yours forever once delivered. Inbox storage stays online as long as your account is active.
If a mailbox fails verification within 24 hours of delivery, we replace it or refund the credit.
Marketplaces, social networks, crypto exchanges, SaaS, gaming, surveys — anywhere that accepts a real inbox.

Ready to scale your sign-ups?

Top up in one click, grab mailboxes in seconds, automate the rest.

Open the panel