Warmforge Reviews & Product Details

Warmforge is an advanced email warm-up and deliverability platform designed to enhance the effectiveness of cold email campaigns. By simulating human-like interactions within mailboxes, it gradually increases sending volumes and engages in AI-driven exchanges, signaling to email service providers that the inbox is active and trustworthy. This process significantly improves sender reputation, ensuring that emails reach recipients' primary inboxes rather than being filtered into spam folders. Warmforge supports both Gmail and Outlook platforms and offers a user-friendly interface that provides real-time insights into email performance. Key Features and Functionality: - AI-Driven Warm-Up: Automatically mimics genuine email activity, including sending, receiving, and replying, to build a positive sender reputation. - Inbox Placement Testing: Evaluates where emails land (inbox, promotions, or spam) to optimize deliverability strategies. - Domain and DNS Monitoring: Continuously checks DNS settings, MX records, and blacklist statuses to ensure proper domain authentication and alert users to potential issues. - Comprehensive Deliverability Dashboard: Offers real-time insights into email performance, including heat score tracking and mailbox health status. - Seamless Integration: Compatible with various outreach tools, allowing for easy connection without complex migrations or manual DNS configurations. Primary Value and User Solutions: Warmforge addresses the critical challenge of email deliverability in cold outreach campaigns. By automating the warm-up process and continuously monitoring domain health, it ensures that emails are more likely to reach their intended recipients' inboxes. This leads to higher open rates, improved engagement, and ultimately, more successful email marketing efforts. For businesses and agencies managing multiple clients, Warmforge provides a scalable solution to maintain optimal sender reputations across numerous domains and mailboxes. Its proactive approach to detecting and resolving potential deliverability issues helps users avoid the pitfalls of spam filters and maintain effective communication channels with their audiences.

Seller

Salesforge

Discussions

Warmforge Community

Overview by

Frank Sondors

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Duarte B.

CEO

Small-Business (50 or fewer emp.)

1/15/2026

"warmup for cold emails became easy"

5/5

What do you like best about Warmforge?

the simplicity to upload mailboxes and have the warmup process integrates with the other apps namely Salesforge and infraforge. Currently I have 71 mailboxes being warmed up and it took me a few seconds to upload them. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

In the beginning it takes a while to understand all their apps and how they interact with each other. Warmup only starts a few hours after all is set. Review collected by and hosted on G2.com.

Khaja S.

Head of Research and Development

Marketing and Advertising

Mid-Market (51-1000 emp.)

10/10/2025

"An Essential Tool for Anyone Serious About Email Deliverability"

5/5

What do you like best about Warmforge?

I really like how the warming flows feel like genuine human interactions, not just robotic spam. This realistic approach is key to staying out of spam folders and building a sustainable, long-term reputation with email providers. It gives me peace of mind. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

While the 'Heat Score' is great, the overall reporting and analytics are a bit basic. I'd love to see more historical data and trends on deliverability performance for each domain over time, directly within the dashboard. Review collected by and hosted on G2.com.

What problems is Warmforge solving and how is that benefiting you?

The direct benefit is a significant increase in our campaign effectiveness. By ensuring our emails consistently land in the primary inbox, Warmforge boosts our open rates, reply rates, and ultimately, the ROI of our entire outreach effort. It provides the foundation for all of our campaigns to succeed. Review collected by and hosted on G2.com.

Justin W.

Founder

Small-Business (50 or fewer emp.)

8/13/2025

"Reliable Email Warm-Up That Works"

5/5

What do you like best about Warmforge?

Warmforge quickly improved my deliverability with AI-driven warm-up that mimics real human sends, opens, and replies. The Heat Score dashboard makes it easy to track progress, and multi-inbox management is a big time saver. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

Setup requires DNS/SPF/DKIM knowledge, so non-technical users might struggle. Reporting is basic, and pricing can add up if you only have a few inboxes. Review collected by and hosted on G2.com.

What problems is Warmforge solving and how is that benefiting you?

Warmforge solves the problem of poor email deliverability for cold outreach.

Before using it, my emails often landed in spam or promotions, hurting response rates. The AI warm-up gradually built sender reputation by mimicking real, natural email activity—sending, opening, replying, and even removing emails from spam.

The benefit is simple: now my cold outreach consistently lands in the primary inbox, open rates are higher, and I spend less time troubleshooting deliverability issues. It’s also easy to manage multiple inboxes from one place, which saves a lot of time. Review collected by and hosted on G2.com.

Yuri L.

CTO

Small-Business (50 or fewer emp.)

6/9/2025

"Great tool to keep your cold mailboxes warm and alive!"

4.5/5

What do you like best about Warmforge?

I tested several tools to increase mailboxes reputation. The warmforge is one of the best: easy to use, fully integrated with mailforge and salesforge, and more important - it works fantastically good! None of my emails, mailboxes and domains need to be constantly replaced any more! Customer support is nice and prompt. Highly recommended to everybody who need infrastructure for cold outreach. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

Actually I don't know why they moved warming-up to the dedicated product. But as all *Forge tools are integrated it is not a problem at all. Review collected by and hosted on G2.com.

Verified User in Marketing and Advertising

Small-Business (50 or fewer emp.)

4/16/2025

"Easy Setup for Mailbox Warm-Up, Awaiting Long-Term Results"

3.5/5

What do you like best about Warmforge?

Getting started was seamless—I was able to submit mailboxes for warm-up without any issues. The platform is user-friendly and straightforward, which is a big plus when you're managing multiple tools and domains. So far, it’s doing what it promises in terms of onboarding. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

The pricing seems a bit steep, starting at $12 per mailbox. For anyone managing a larger volume, this could get expensive fast. If there were volume discounts or bundling options with other tools, it would be more compelling. At this stage, I’m also still waiting to see measurable impact from the warm-up process. Review collected by and hosted on G2.com.

What problems is Warmforge solving and how is that benefiting you?

We use Warmforge to warm up new mailboxes before launching cold outreach campaigns. This is crucial for improving deliverability and avoiding spam filters. While we're still in the early stages and waiting to see measurable results, the setup process was very smooth and everything worked as expected. Review collected by and hosted on G2.com.

Dominique W.

Founder

Small-Business (50 or fewer emp.)

10/31/2025

"Warmforge Guarantees Email Delivery—Works Perfectly with No Complaints"

5/5

What do you like best about Warmforge?

Warmforge is the garanty that my emails eventually reach prospects and the best it helps me to Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

nothing the product works perfectly, no complain Review collected by and hosted on G2.com.

Verified User in Marketing and Advertising

Small-Business (50 or fewer emp.)

5/20/2025

"overall great experience with Warmforge"

5/5

What do you like best about Warmforge?

I've been using Warmforge for a few months now, and it's been a game-changer for our cold email outreach. Before Warmforge, we struggled with deliverability issues—many of our emails were landing in spam folders, and our open rates were disappointingly low.

What sets Warmforge apart is its AI-driven approach to email warm-up. The platform simulates genuine human interactions by sending and receiving emails that mimic real conversations. This strategy has significantly improved our sender reputation, ensuring that our emails land in the primary inbox rather than being filtered out. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

Nothing - I think this solution is comprehensive. Review collected by and hosted on G2.com.

Reinis A.

Founder

Small-Business (50 or fewer emp.)

7/17/2025

"Warmforge Review"

5/5

What do you like best about Warmforge?

I’ve seen my emails consistently land in primary inboxes, with a heat score of 99 after a couple of weeks. The dashboard is straightforward, letting me track multiple mailboxes easily. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

The setup for DNS records can be tricky if you’re not tech-savvy, and the support response time is sometimes slow, but rarely. Review collected by and hosted on G2.com.

Nancy O.

Directora General

Small-Business (50 or fewer emp.)

4/17/2025

"Very valuable feature"

5/5

What do you like best about Warmforge?

The mailboxes are always receiving good interactions, which increases the reputation and effectiveness of each campaign. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

That there is a risk of falling into spam even during warming up, but it is something that Mailforge handles very well to get the emails out of that folder. Review collected by and hosted on G2.com.

Manuel F.

Cofounder

Small-Business (50 or fewer emp.)

5/9/2025

"Solid warming, not spammy"

5/5

What do you like best about Warmforge?

Warming flows feel real...like actual humans emailing and replying. No weird robotic patterns. Helps our domains stay clean. Review collected by and hosted on G2.com.

What do you dislike about Warmforge?

Would be cool to customize the flows more, but honestly it’s probably better that it stays simple. Review collected by and hosted on G2.com.