Cold outreach infrastructure that keeps you out of spam and gets you 230% more sales calls

(proven by 3,000 cold emailers)

Have you tried

cold outreach but didn’t see a real boost in sales? Tired of constantly setting up new email accounts and losing faith it’ll ever work?

You might be doing it the wrong way.

9 out of 10 cold emailers use outdated tools

And that’s why all their emails end up in spam.

They might start with a good template, but after just 4–5 days, their campaigns start to crash. IPs get blacklisted, reply rates drop, and within a week, everything stops working

Strong copy, personalization, a carefully segmented list—it all means nothing if your emails land in spam.

That’s why we built Maildoso

With Maildoso, you can set up hundreds of email inboxes (and domains) in just 10–15 minutes and be confident your emails will actually reach your prospects. And you’re not sending from just one dedicated IP address — if one of your IP addresses gets blocked, we simply replace it. Your campaigns keep running, and you won’t even notice a thing.

We know this — because it happened to us.

We’re hiring more sales reps because our team’s fully booked.

We switched to group demos just to handle the volume.

We added lead qualification forms to reduce the pressure on our team.

We did it because our tech works.

And we believe it’ll work for you, too.

Take a look at the kind of results you can get

Want to see what Maildoso looks like and how it can help you get more sales calls?

No time for a call? Check out this short video.

But don't trust us!

We’re not here to hype ourselves up — let’s be honest, who really trusts what a company writes on its own website? It’s better to look at reviews on trusted platforms.

We’ve already got 125+ reviews on G2 with an average rating of 4.7 out of 5.

Here’s how most cold emailers run outbound:

They register domains and emails manually wasting up to 2 full days.

They pay $7+ for every Google or Outlook inbox, plus $10-15 for the domain.

They constantly hit spam filters and lose thousands because their leads never even see the message.

And here’s how you can do it:

Pay as little as $1.40 per inbox, and get domains for free.

Watch your sales team’s calendar fill up — 50%, 70%, 100% booked — and monthly sales grow.

Let’s do the math

and see what kind of results you can get:

How does our tech work?

We fix outbound on multiple levels:

We automate mailbox creation

That means you can set up 1,000 inboxes in just 15 minutes. No boring tasks—just more time for what matters.

We boost your deliverability

so you stay out of spam. Instead of 1 IP, we use a pool of hundreds—so spam filters barely stand a chance.

We provide the entire infrastructure

So we offer some of the lowest prices on the market: just $1.40/month per inbox with an annual plan, or $1.80/month with a quarterly plan.

And the best part – you get full support!

All Maildoso customers can request a detailed audit, including spam tests, copy reviews, and campaign structure analysis. The audit is completely free, and there’s no limit – you can request it as many times as you need.

You can also join our Slack community, where we share success stories, give feedback on cold email copy, and connect with trusted service providers.

There are already 900 of us!