Maildoso 30-Day Trial

Test Our Mailboxes During a 30-Day Trial!

Create 50 mailboxes for free and connect them to your active campaigns!

How It Works

1. Buy 10 domains

Domain cost is $12/year (cheaper than Instantly or Smartlead). They remain yours in any case – after the trial, you can use them as you like.

2. Get 50 mailboxes

The trial is already set up there for 30 days (7 days before your trial ends, you’ll receive an email reminder).

3. Start using them

Register on app.maildoso.com, then create 50 mailboxes and export them as a CSV file — we support all major cold email sending platforms.

4. Join our Slack Community

We’ve gathered over 1,300 outbound professionals in our free Slack community — a place where you can find contractors, ask tech support questions, join upcoming webinars, or submit your copy for a roast.

See It in Action

Why You Should Try It

IP rotation

Your emails are sent from many different IPs, which keeps them from being flagged by spam filters.

Self-healing mailboxes

Did some of your mailboxes burn out? No problem — we’ll automatically pause them from sending for 14 days so they can recover!

Global customer domains tracking

With our mailboxes you can include any links, videos, and images in the first message (we automatically replace them with safe substitutes).

Fully automated setup

Create hundreds of mailboxes in just 5–10 minutes. SPF, DKIM, and DMARC records are configured automatically.

Deliverability Checks

We regularly measure deliverability for all mailboxes — you can review the health score of each mailbox and see an overall account rating right in your dashboard.

Trusted by 4,500+ users

Join leading agencies, SaaS companies, and sales teams that trust Maildoso to keep their outbound stable, scalable, and safe.

What to Expect After The Trial

You can continue using the mailboxes

Just subscribe at only $1.20/month per mailbox (one of the lowest prices on the market).

All our packages come with a 30-day money-back guarantee

You can return the mailbox fees for any reason — just contact support to request a refund

Add our Premium Warmup

With AI agents, we perform hundreds of thousands of in-browser actions, which greatly improves mailbox reputation and makes it invisible to spam filters