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Warmbox tool logo on Freelance Stack
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Warmbox tool logo on Freelance Stack

Warmbox

Premium Deal
1 deal available
Warm-up your cold email inbox. And never land in spam anymore.
Reach the inbox of your leads with Warmbox, the warm-up tool that raises your inbox reputation & increases your email deliverability.
Save big with 850+ deals 💶
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Illustration of Warmbox on Freelance Stack's deal page
1 deal available
Premium Deal #1

30% off during 12 months

All our deals are negotiated by our team to give you the best discount and are updated regularly.
This deal requires you to create a new account to benefit from the discount. It is reserved for new customers
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Access our 850+ exclusive promo code for $55/year.
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March 2026 -

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Warmbox

Benefit from 30% off during 12 months on Warmbox.

Save 30% off during 12 months on Warmbox thanks to our exclusive partnership.

Freelance Stack is the first deals platform to access best discounts, coupon codes and credits on 650+ softwares, SaaS and online services for entrepreneurs and startups. We offer exclusive and validated discounts that we negotiate directly with partners to help you to grow and save money. Our coupon codes enable thousands of entrepreneurs, startups, freelancers and consultants to save thousands of euros on best softwares.

Don't wait any longer and save 30% off during 12 months on Warmbox.

Software information 

Warmbox

Warmbox is a platform designed to optimise email deliverability and improve email marketing campaigns. It helps users configure email addresses and create automated sending sequences, ensuring that messages reach recipients' inboxes. Warmbox uses email warming techniques to increase the reputation of addresses, which is essential for avoiding spam filters.

By providing analysis and recommendations on campaign performance, Warmbox enables businesses to adjust their emailing strategy and maximise their impact. In short, Warmbox is an effective solution for improving the deliverability and effectiveness of email marketing campaigns.

Why email warm-up is important?

Without email warm-up: Running cold emailing campaigns for sales or marketing needs without warm-up can be risky for your sender reputation & your deliverability.

  • A lot of your emails are landing in spam
  • Email providers can blacklist your domain
  • All your emails can be qualified as dangerous

Thanks to email warm-up: Send cold email campaigns that don't land in spam. Let your emails reach the inbox, get more leads and generate more sales!

  • Your emails are sent & delivered
  • Increase your deliverability & reputation
  • Reach your leads & close more deals

How it works?

Warmbox sends emails automatically from your inbox & interact with them, as perfect leads would do, to increase your email deliverability.

  1. Connect your inbox in 2min & start your warm-up
  2. We interact automatically, as humans, with your emails
  3. +35,000 inboxes ready to raise your email reputation
  4. Monitor your new great deliverability results with detailed reports

Software alternatives to Warmbox

Find the right software with our suggestions for alternative solutions.

When developing your business, it's important to compare the tools that can help you grow your business. There are thousands of different tools and software available. These tools are interesting alternatives to Warmbox.

Our new Premium deals

We offer discounts on over 650 different softwares. We regularly add new discounts on the best softwares for freelancers, consultants and entrepreneurs.

Discover these new softwares in addition to the deal we offer with Warmbox.

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Freelance Stack offers you discounts on over 650 different softwares. That's both a lot and a little compared to all the softwares available in the market that can help you in your business as an entrepreneur, a startup or a freelancer.

Discover new softwares and discounts to complement the deal we're offering on Warmbox.