EmailWarmup.com vs MailRush.io: Email Warmup Tool vs Cold Email Platform Comparison
Compare EmailWarmup.com (email warmup tool) and MailRush.io (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
EmailWarmup.com is an email warmup tool for domain warming and deliverability, priced from $29/mo, while MailRush.io is a cold email outreach platform priced from $19/mo. Choose EmailWarmup.com to build sender reputation and inbox placement, choose MailRush.io to send campaigns and generate replies, or run both together in an outbound stack.
Key takeaways
- EmailWarmup.com's entry plan is $29/mo (Pro), while MailRush.io's entry plan is $19/mo (Starter).
- MailRush.io offers three pricing tiers (Starter $19/mo, Pro $39/mo, Scale $99/mo), compared to EmailWarmup.com's two tiers (Pro and Enterprise).
- MailRush.io's Starter plan supports up to 1,000 contacts and up to 5,000 emails per month, capped at 1,000 emails per day.
- EmailWarmup.com lists 8 integrations including Google, Outlook, SendGrid, Mailchimp, Klaviyo, Shopify, and Salesforce, while MailRush.io lists 4 integrations: SMTP, IMAP, Zapier, and Webhooks.
- EmailWarmup.com includes a dedicated deliverability consultant and mailbox provisioning with 24/7 replacement, while MailRush.io includes email warmup and email validation on every plan.
Reviewed and updated September 2, 2026
EmailWarmup.com vs MailRush.io: Email Warmup Tool vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh EmailWarmup.com, an email warmup tool for email domain warming and deliverability, against MailRush.io, a cold email platform for cold email outreach. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
EmailWarmup.com is an email warmup tool for email domain warming and deliverability; MailRush.io is a cold email platform for cold email outreach. By each vendor's own wording, EmailWarmup.com lists personalized warmup and multiple esp warmup (google, outlook, etc.), and MailRush.io lists unlimited senders and unlimited email warming.
MailRush.io offers a lower entry point at $19/mo compared to EmailWarmup.com at $29/mo.
If your priority is building sender reputation and improving inbox placement, EmailWarmup.com is the one built for it; for sending campaigns that land in the inbox and generate replies, that is MailRush.io. Many teams run one of each.
Understanding the Core Difference
EmailWarmup.com is Email deliverability platform whose core product is personalized email warmup, matching your industry and mirroring your copy while warming professional-to-professional and personal-to-personal mailboxes. It adds unlimited email spam tests, a dedicated deliverability consultant, mailbox provisioning with 24/7 replacement, and a warmup API.
MailRush.io is Cold email software that automates outreach and multi-step follow-ups from your own SMTP/IMAP mailboxes or MailRush-provided sending accounts. Email warmup and email validation are included in every plan.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Pro
Starter
EmailWarmup.com Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Pro | $29/mo | Per mailbox; For Individuals + Businesses. | Not published; warmup volume is not stated as a per-day figure |
| Enterprise | Contact Sales | For Individuals + Businesses. | Personalized Warmup at Higher Volume |
Source: EmailWarmup.com Pricing
MailRush.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $19/mo | Up to 1,000 contacts | Up to 5,000 emails per month; up to 1,000 emails per day |
| Pro | $39/mo | Up to 30,000 contacts | Up to 10,000 emails per month; up to 1,500 emails per day |
| Scale | $99/mo | Up to 50,000 contacts | Up to 25,000 emails per month; up to 3,000 emails per day |
Source: MailRush.io Pricing
Pricing Analysis
MailRush.io offers the lower entry point ($19/mo vs $29/mo). Teams watching their budget will appreciate the savings, especially when starting out.
MailRush.io offers 3 pricing tiers compared to EmailWarmup.com's 2, giving you more granularity as you scale.
Features Breakdown
- Personalized Warmup
- Multiple ESP Warmup (Google, Outlook, etc.)
- Select Warmup Language
- Deliverability Test
- Google Postmaster Integration
- API Access
- and 2 more listed below
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- and 5 more listed below
EmailWarmup.com Key Features
- Personalized Warmup
- Multiple ESP Warmup (Google, Outlook, etc.)
- Select Warmup Language
- Deliverability Test
- Google Postmaster Integration
- API Access
- Seed List Warmup
- Deliverability Consultation
MailRush.io Key Features
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- Email follow-ups
- Suppression list
- Email copy spam assessment
- Email personalization
- Unsubscription automation
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by EmailWarmup.com
- Personalized Warmup
- Multiple ESP Warmup (Google, Outlook, etc.)
- Select Warmup Language
- Deliverability Test
- Google Postmaster Integration
- API Access
- Seed List Warmup
- Deliverability Consultation
Listed only by MailRush.io
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- Email follow-ups
- Suppression list
- Email copy spam assessment
- Email personalization
- Unsubscription automation
Integration Ecosystem
EmailWarmup.com Integrations
EmailWarmup.com connects with: Google, Outlook, Office, SendGrid, Mailchimp, Klaviyo, Shopify, Salesforce.
MailRush.io Integrations
MailRush.io connects with: SMTP, IMAP, Zapier, Webhooks.
Integrations listed only by EmailWarmup.com: Google, Outlook, Office, SendGrid, Mailchimp, Klaviyo, Shopify, Salesforce.
Integrations listed only by MailRush.io: SMTP, IMAP, Zapier, Webhooks.
Use Case Recommendations
Best Fit for EmailWarmup.com
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for MailRush.io
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (11 capabilities listed)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Feature Comparison Summary
| Feature | EmailWarmup.com | MailRush.io |
|---|---|---|
| Starting Price | $29/mo | $19/mo |
| Top Tier Price | Contact Sales | $99/mo |
| Total Features Listed | 8 | 11 |
| Integrations | 8 | 4 |
Getting Started Checklist
- Define your email domain warming and deliverability and cold email outreach requirements and monthly budget
- Estimate your expected warmup email volume and email sending volume to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
EmailWarmup.com serves the email domain warming and deliverability side of an outbound stack and MailRush.io the cold email outreach side. MailRush.io offers a more accessible entry point at $19/mo, while EmailWarmup.com starts at $29/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit EmailWarmup.com and MailRush.io for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between EmailWarmup.com and MailRush.io?
- EmailWarmup.com is an email warmup tool focused on email domain warming and deliverability, while MailRush.io is a cold email platform built for sending outreach campaigns. EmailWarmup.com lists personalized warmup and multiple ESP warmup, while MailRush.io lists unlimited senders and unlimited email warming as core features.
- Which is cheaper, EmailWarmup.com or MailRush.io?
- MailRush.io has the lower entry price at $19/mo compared to EmailWarmup.com's $29/mo entry plan. MailRush.io also offers three pricing tiers (Starter, Pro, Scale) versus EmailWarmup.com's two (Pro and Enterprise), giving budget-conscious teams more pricing granularity as they scale.
- Can I use both EmailWarmup.com and MailRush.io together?
- Yes, the article notes that many teams run one of each since they cover different parts of the outbound workflow. EmailWarmup.com handles sender reputation and inbox placement, while MailRush.io handles sending campaigns and generating replies, making them complementary rather than competing tools.
- What integrations does EmailWarmup.com support?
- EmailWarmup.com connects with Google, Outlook, Office, SendGrid, Mailchimp, Klaviyo, Shopify, and Salesforce, totaling 8 integrations. This is broader than MailRush.io's listed integrations, which are limited to SMTP, IMAP, Zapier, and Webhooks.
- How many emails can I send per day with MailRush.io's Starter plan?
- MailRush.io's Starter plan, priced at $19/mo, allows up to 1,000 emails per day and up to 5,000 emails per month, with support for up to 1,000 contacts. Higher tiers like Pro and Scale raise these limits along with the price.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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