QuickMail vs Warmup Inbox: Cold Email Platform vs Email Warmup Tool Comparison
Compare QuickMail (cold email platform) and Warmup Inbox (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Compare QuickMail (cold email platform) and Warmup Inbox (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reviewed and updated September 2, 2026
QuickMail vs Warmup Inbox: Cold Email Platform vs Email Warmup Tool Comparison
Sales teams building an outbound stack often weigh QuickMail, a cold email platform for cold email outreach, against Warmup Inbox, an email warmup tool for email domain warming and deliverability. 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
QuickMail is a cold email platform for cold email outreach; Warmup Inbox is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, QuickMail lists multichannel outreach (email and linkedin) and inbox rotation, and Warmup Inbox lists email warmup and cold email sequence.
Warmup Inbox offers a lower entry point at $19/mo compared to QuickMail at $49/mo.
If your priority is sending campaigns that land in the inbox and generate replies, QuickMail is the one built for it; for building sender reputation and improving inbox placement, that is Warmup Inbox. Many teams run one of each.
Understanding the Core Difference
QuickMail is Cold email outreach platform with multichannel campaigns, inbox rotation, auto warmup, and deliverability monitoring for agencies and sales teams.
Warmup Inbox is Email warmup service that exchanges natural-looking email with a network of more than 30,000 real inboxes to build sender reputation automatically. Also offers cold email sequences, language warmup, ESP warmup and IP warmup from the same dashboard.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter Plan
Basic
QuickMail Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter Plan | $49/mo | 1,000 Uploaded Contacts | 5,000 Emails Sent/mo. |
| Growth Plan | $99/mo | 25,000 Uploaded Contacts | 100,000 Emails Sent/mo. |
| Agency Plan | $299/mo | 100,000 Uploaded Contacts | 500,000 Emails Sent/mo. |
Source: QuickMail Pricing
Warmup Inbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | $19/mo | per inbox | 75 warmup messages/day |
| Pro | $59/mo | per inbox | 250 warmup messages/day |
| Max | $99/mo | per inbox | 1,000 warmup messages/day |
| For agencies & teams | Contact Sales | Custom plans starting at 15 inboxes | custom |
Source: Warmup Inbox Pricing
Pricing Analysis
Warmup Inbox offers the lower entry point ($19/mo vs $49/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Warmup Inbox offers 4 pricing tiers compared to QuickMail's 3, giving you more granularity as you scale.
Features Breakdown
- Multichannel outreach (email and LinkedIn)
- Inbox rotation
- Auto email warmup
- Blacklist monitoring
- AI-driven follow-ups
- Google-approved sending API
- and 4 more listed below
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- and 3 more listed below
QuickMail Key Features
- Multichannel outreach (email and LinkedIn)
- Inbox rotation
- Auto email warmup
- Blacklist monitoring
- AI-driven follow-ups
- Google-approved sending API
- Advanced analytics
- Unlimited team members
- Reply handling
- 14-day free trial
Warmup Inbox Key Features
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- Email reputation Check
- Human-like AI generated content
- Developers API
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 QuickMail
- Multichannel outreach (email and LinkedIn)
- Inbox rotation
- Auto email warmup
- Blacklist monitoring
- AI-driven follow-ups
- Google-approved sending API
- Advanced analytics
- Unlimited team members
- Reply handling
- 14-day free trial
Listed only by Warmup Inbox
- Email warmup
- Cold email sequence
- Language warmup
- ESP warmup tool
- IP warmup
- Spam & Category monitoring
- Email reputation Check
- Human-like AI generated content
- Developers API
Integration Ecosystem
QuickMail Integrations
QuickMail connects with: HubSpot, Pipedrive, Zapier, Make, Slack, Gmail, Outlook, Google Sheets.
Warmup Inbox Integrations
Warmup Inbox connects with: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Integrations listed only by QuickMail: HubSpot, Pipedrive, Zapier, Make, Slack, Gmail, Outlook, Google Sheets.
Integrations listed only by Warmup Inbox: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP.
Use Case Recommendations
Best Fit for QuickMail
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (10 capabilities listed)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Best Fit for Warmup Inbox
- Budget-conscious teams looking for an affordable email warmup tool
- Enterprise buyers who prefer custom pricing and dedicated support
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Feature Comparison Summary
| Feature | QuickMail | Warmup Inbox |
|---|---|---|
| Starting Price | $49/mo | $19/mo |
| Top Tier Price | $299/mo | Contact Sales |
| Total Features Listed | 10 | 9 |
| Integrations | 8 | 8 |
| Founded | 2014 | N/A |
Getting Started Checklist
- Define your cold email outreach and email domain warming and deliverability requirements and monthly budget
- Estimate your expected email sending volume and warmup email 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
QuickMail serves the cold email outreach side of an outbound stack and Warmup Inbox the email domain warming and deliverability side. Warmup Inbox offers a more accessible entry point at $19/mo, while QuickMail starts at $49/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 QuickMail and Warmup Inbox for current information.
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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