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E-Warmup is an AI-powered email deliverability and automated inbox warmup platform built to stop cold outreach and marketing sequences from landing in spam or the promotions tab.
Unlike legacy warmup software that relies on detectable bot scripts and generic templates, E-Warmup leverages 10+ years of manual deliverability consulting across 4,000+ accounts to simulate real human sender behavior. Sending accounts are paired with a decentralized network of 40,000+ authentic inboxes to maintain a 98% primary inbox placement rate.
Free to get started with no credit card required. Scalable paid plans start from $49/mo (or $41/mo billed annually), with mailbox costs scaling as low as $3.92/mailbox on larger agency tiers.
Start warming up free in 25 seconds- no credit card required.
Mailwarm is an automated email warmup and deliverability platform designed to help businesses keep their emails out of spam folders and consistently reach the inbox.
Since 2020, Mailwarm has helped founders, sales teams, marketers, and agencies improve email deliverability, build strong sender reputation, and scale cold email outreach safely. We focus on the real fundamentals of deliverability: trust, consistency, and genuine engagement.
Mailwarm automatically warms up new domains, inboxes, and SMTP servers by generating natural interactions between real email accounts. This process protects your reputation, prevents spam filtering, and improves inbox placement across major providers including Gmail, Outlook, Microsoft 365, and Yahoo.
Key Features: - Automated email warmup for Gmail, Outlook, and Microsoft 365 - Multi-provider warmup for realistic sender reputation building - Spam score tracking to measure inbox vs spam performance - Bounce prevention and verification systems - SMTP, domain, and mailbox warmup - Easy one-click Outlook & Office365 connection - Guided SMTP setup and deliverability monitoring - Stable warmup with auto-recovery from connection issues - Team and agency management with flexible plans
Email warmup is not a hack, it’s a process. Mailwarm was built to do it properly, using real engagement signals to help your emails earn long-term trust with mailbox providers.
Whether you’re launching new outreach campaigns, onboarding new sales reps, or managing multiple client accounts, Mailwarm helps you send emails with confidence and achieve better inbox placement instead of landing in spam.
Mailwarm is not just an email warmup tool. Every plan includes an email deliverability expert who works with you to set up your infrastructure, monitor your performance, and fix issues that impact your inbox placement. Most tools show you data. Mailwarm helps you improve results.
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E-Warmup's answer
E-Warmup combines AI-powered email warmup, real inbox engagement, and deliverability monitoring in a single platform. Unlike tools that rely on artificial interactions, E-Warmup uses a large network of real inboxes to generate authentic opens, replies, and engagement signals that help build sender reputation.
The platform also includes inbox placement testing, blacklist monitoring, DNS health checks, AI Read Emulation, and support for major providers such as Gmail, Outlook, SendGrid, Mailgun, Amazon SES, and SMTP services. Setup takes less than 30 seconds, allowing businesses to improve deliverability without complex technical work.
Mailwarm's answer:
Mailwarm is an email warmup and deliverability platform built by a Y Combinator and Station F startup.
Since 2020, we’ve worked with many types of companies: SaaS startups, recruitment agencies, e-commerce brands, and sales teams; to help them improve inbox placement safely.
Mailwarm is unique because it offers: - Real multi-provider warmup (Gmail, Outlook, Microsoft 365, Yahoo)
Clear and real spam score tracking
Built-in bounce prevention
Easy setup and stable automation
Our focus is simple: help businesses keep emails out of spam and land in the inbox.
E-Warmup's answer
E-Warmup focuses on the outcome that matters most: getting emails into the inbox. The platform combines automated warmup, real engagement signals, reputation monitoring, inbox placement tracking, and authentication insights in one place. Users benefit from AI-powered warmup strategies, support for multiple providers, customizable warmup topics and languages, and visibility into deliverability issues before they impact campaigns.
Businesses choose E-Warmup because it helps reduce spam placement, strengthen sender reputation, and scale email outreach with confidence.
Mailwarm's answer:
Mailwarm delivers real, measurable results instead of risky shortcuts.
Users choose Mailwarm because it provides: - Automated email warmup that protects sender reputation
Multi-provider engagement for realistic signals
Spam score to track deliverability progress
One-click Outlook and Office365 connection
Reliable campaigns with auto-recovery
It’s an easy, transparent, and professional way to improve email deliverability.
E-Warmup's answer
E-Warmup is built for businesses and professionals who depend on email for growth and communication. Its primary users include sales teams, marketers, lead generation agencies, recruiters, SaaS companies, eCommerce brands, startups, consultants, and customer success teams.
The platform is especially valuable for organizations running cold outreach, onboarding campaigns, transactional emails, or high-volume email programs where inbox placement directly impacts revenue and results.
Mailwarm's answer:
Mailwarm is for anyone who depends on email outreach:
Sales teams sending cold emails
Founders and startups launching new domains
Marketing agencies
Recruiters and staffing firms
Growth and outbound teams
If inbox placement matters to your business, Mailwarm is built for you.
E-Warmup's answer
E-Warmup was created to solve one of the most frustrating challenges in email marketing and outreach: emails landing in spam despite having strong offers and messaging. Many businesses spend significant time creating campaigns only to discover that deliverability issues prevent emails from reaching recipients.
E-Warmup was built to help organizations establish trust with mailbox providers, improve sender reputation, monitor domain health, and give users a reliable way to reach the inbox through automated warmup and deliverability intelligence.
Mailwarm's answer:
Mailwarm started as a real problem we faced ourselves.
We were two founders working at Station F in Paris, the largest startup incubator in Europe, trying to sell our own products. Every time we launched outreach campaigns, our emails kept landing in spam.
To solve this, we built an internal email warmup system for our personal use. After deep research into email deliverability, we created a stronger, more reliable solution.
Other startups in the incubator quickly asked to use it too; so we turned it into a real product.
After launching publicly, Mailwarm became #1 Product of the Day on ProductHunt and was accepted into Y Combinator, the world’s most prestigious startup accelerator.
Since then, Mailwarm has grown into a trusted platform used by thousands of companies to improve inbox placement and email deliverability.
E-Warmup's answer
E-Warmup is built around AI-powered automation, large-scale inbox engagement infrastructure, deliverability monitoring systems, reputation tracking technology, and email authentication analysis.
The platform integrates with major email providers including Gmail, Google Workspace, Outlook, Microsoft 365, SendGrid, Mailgun, Amazon SES, and SMTP services while providing real-time insights into sender reputation, inbox placement, SPF, DKIM, and DMARC performance.
Mailwarm's answer:
Mailwarm is a secure cloud-based SaaS platform built on:
SMTP and IMAP email protocols
Advanced verification systems
Multi-provider infrastructure
Real-time analytics and monitoring
Reliable automation engines
These technologies ensure stable, continuous email warmup.
E-Warmup's answer
Mailwarm's answer:
As a Y Combinator and Station F startup, Mailwarm works with:
Tech startups and SaaS companies
Recruitment and staffing agencies
Real Estate Agencies
B2B marketing agencies
E-commerce brands
Sales and outbound teams
Freelancers and consultants
From France to global markets, hundreds of organizations trust Mailwarm to improve email deliverability and inbox placement.
I decided to try Mailwarm after having consistent issues with my emails landing in spam folders. At the beginning, I wasn’t fully sure what to expect, but the onboarding process was simple enough to get me started quickly. After running it for a while, I began to notice a steady improvement in my email deliverability. More of my messages started reaching the inbox instead of getting filtered out, which really helped with my outreach efforts. Overall, it’s been a reliable experience. It may not be perfect, but it definitely does what it’s supposed to do if you give it time.
I started using Mailwarm because I was struggling with my emails going straight to spam, especially for outreach. At first, I wasn’t expecting much, but after a couple of weeks, I actually started noticing a difference. The setup was pretty simple, and once everything was connected, it just kept running in the background without me needing to constantly check it. That’s something I really appreciated.
Overall, I’d say it’s a reliable tool if you’re serious about improving email deliverability without overcomplicating the process.
I have been using Mailwarm to warm up email accounts and improve overall deliverability for my outreach campaigns. The setup process was very simple and everything runs automatically without requiring constant monitoring. Since using the tool, I’ve seen a clear improvement in inbox placement and fewer emails landing in spam. It’s a reliable and effective solution for anyone doing cold email or managing multiple inboxes.
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