Mailwarm vs Warmy: A Warmy Alternative With Expert Support
Mailwarm vs Warmy: Warmy is a broad, self-serve deliverability platform with a very large mailbox network and built-in seed testing, from $49 a month. Mailwarm is built on a different idea: network size doesn't fix a broken setup. Every Mailwarm customer gets an account manager who helps set up the account and configure SPF, DKIM and DMARC, plus deliverability expert calls on every plan. When the problem is setup, authentication or reputation, Mailwarm is the stronger fit.
MBy the Mailwarm deliverability teamUpdated October 20266 min read
Mailwarm vs Warmy at a glance
Mailwarm vs Warmy at a glance (checked October 2026)
Feature
MailwarmExpert support included
Warmy
Account manager and support
An account manager for every customer: account setup, SPF, DKIM and DMARC configuration, a deliverability audit, an expert call and ongoing follow-up
Dedicated expert on all plans; success manager on the Custom plan; free consultation via demo
Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook and 140+ ESPs
Monitoring
Live inbox vs spam placement tracking
Inbox placement tests with a 500K+ US seed list
Warmup network
50,000+ aged real inboxes
1M+ mailbox network
Price and what's included
From $69/mo billed annually, with expert calls, DNS setup help and an account manager included. See pricing
From $49/month
Warmy details come from its public pages (Warmy pricing, Warmy reviews on Capterra), last checked October 2026. This comparison is published by Mailwarm. Competitor details come from their public pages on the date shown.
Network size is one factor among many. Authentication, domain reputation and sending setup decide whether warmup works, which is why Mailwarm puts an expert on every account.
Why support matters more than network size
A bigger warmup network doesn't fix a broken setup. If your SPF record doesn't include the service you send from, your DKIM key isn't published, or your DMARC policy is misconfigured, mailbox providers can still filter your emails, whatever the size of the network warming them up.
That's why every Mailwarm customer gets an account manager. They help you set up your account, check and configure your SPF, DKIM and DMARC records, connect your inboxes and plan your ramp-up. Then they stay with you: deliverability expert calls are included on every plan, so when something changes in your sending, someone who already knows your setup is there to help.
Warmup is the part that runs automatically. The expertise around it is what keeps you in the inbox, and it's what we've been doing since 2020.
Deliverability expertise since 2020
Mailwarm is an email warmup service with expert support. Since 2020, it has combined automated warmup across 50,000+ aged real inboxes with an account manager who helps every customer set up SPF, DKIM and DMARC, and deliverability expert calls on every plan. Mailwarm was one of the first dedicated email warmup services and is backed by Y Combinator (S20).
Since 2020Deliverability expertise
Y CombinatorS20 batch
10,000+ teamsTrusted by startups to global enterprises
Trusted by 10,000+ teams, from startups to global enterprises
From Spam Folder to Success
What Our Customers Say
We increased by 31% our Microsoft inbox placement. We tried two warm-up tools before working with Mailwarm. The difference is night and day, these are actual experts, not a dashboard.
William Mann
CEO, Prime Match Recruiting
Mailwarm team has significantly improved our email deliverability and helped us build a solid foundation for scaling outbound at Luvi. The team is reliable, efficient, and easy to work with. They have become an essential part of our growth stack.
Rhai Goburdhun
Founder & CEO, Luvi
Why teams look for a Warmy alternative
1.Cost as you add inboxes
Price is the most repeated complaint in reviews. Plans start at $49 a month, and reviewers describe the service as "not cheap", especially as a team adds mailboxes.
2.Limited control over warmup settings
Several reviewers wanted more customization of warmup behavior and a dashboard with more depth than the default view.
3.Provider and reliability issues
A few reviewers reported that warming Gmail accounts worked less well than expected, or that warmup stopped running for a period before it was noticed.
You want a person, not just a dashboard: an account manager who knows your setup.
You want your SPF, DKIM and DMARC configured correctly from day one, with someone checking them with you.
You've already tried warmup and still land in spam, and you need someone to find out why.
You don't need a 1M+ network and a seed-testing suite. You need your setup fixed and someone watching it.
You want ongoing help as your volume grows, not just onboarding.
Who Warmy is built for
Warmy is designed for:
Teams that want seed-list inbox placement testing inside the same tool as their warmup.
Senders on marketing ESPs such as Mailchimp, HubSpot or Klaviyo, since Warmy lists 140+ supported ESPs.
If your priority is getting your setup right and having an expert follow it, that's what Mailwarm is built for.
How onboarding works with your account manager
1
Onboarding call
Your account manager learns how you send: your tools, your domains, your volumes and what you want to fix.
2
Deliverability audit
An expert reviews your authentication, domain reputation and sending setup before warmup starts.
3
DNS setup
Your account manager helps you add or fix your SPF, DKIM and DMARC records with your DNS provider, and checks that they pass.
4
Pause warmup in Warmy
Once Mailwarm starts, turn off warmup in Warmy so the two tools don't double your daily volume. Mailwarm takes over with a gradual ramp, and your account manager follows the results with you.
Warmy's pricing page lists plans starting from $49 a month, with a 7-day free trial that needs no credit card. Higher plans add more mailboxes and features, and a Custom plan includes a dedicated success manager. Prices were checked in October 2026, so confirm the current figures on Warmy's own pricing page before you decide.
What are people saying about Warmy.io in reviews?
Warmy holds a 4.8 out of 5 rating from 55 reviews on Capterra. The most common complaints are price, limited control over warmup settings, and a few reports of Gmail warmup or reliability problems. For comparison, Mailwarm is rated 4.9 out of 5 on Capterra, with 5.0 for customer service. Ratings checked October 2026.
What is the best email warmer?
The best email warmer is the one that gets your setup right, not the one with the biggest network. Warmup only works when SPF, DKIM and DMARC are configured correctly and your domain reputation is healthy. That's why Mailwarm pairs automated warmup with people: every customer gets an account manager who helps set up DNS, authentication fix tools, and deliverability expert calls on every plan.
Which is better, Warmy or Mailwarm?
It depends on what is holding your deliverability back. Most inbox placement problems come from setup: SPF, DKIM and DMARC records, domain reputation and how fast sending ramps up. That's where Mailwarm is the stronger choice, because every customer gets an account manager who fixes the setup with them and deliverability expert calls on every plan. Warmy is built for teams that want a very large network and seed testing and prefer to handle their setup themselves.
Does a bigger warmup network mean better deliverability?
Not on its own. A larger network gives a warmup tool more inboxes to interact with, but it can't make up for a missing DKIM signature, an SPF record that doesn't include your sending service, or a domain with a poor reputation. Those are the issues that decide where your emails land. Mailwarm gets them right with you first, then runs warmup across 50,000+ aged real inboxes.
Does Mailwarm help me set up SPF, DKIM and DMARC?
Yes. Every Mailwarm customer gets an account manager who checks your SPF, DKIM and DMARC records, helps you add or fix them with your DNS provider, and confirms they pass. Most deliverability problems start with authentication, so it's the first thing we look at.
How do I switch from Warmy to Mailwarm?
Book your onboarding call first. Your account manager reviews your current setup, including SPF, DKIM and DMARC, then helps you connect the same inboxes and start a gradual ramp-up. Once Mailwarm is running, pause warmup in Warmy so the two tools don't double your daily volume.
Does Mailwarm support the same email providers as Warmy?
Mailwarm supports Gmail and Google Workspace, Outlook and Microsoft 365, Yahoo and Zoho, plus SMTP providers including SendGrid, Mailgun, Amazon SES, Postmark and custom SMTP. Warmy lists support for more than 140 ESPs, so if you send through a marketing platform such as Klaviyo, check that your setup is covered before switching.
