Best Inboxy Alternatives in 2026
Looking for alternatives to Inboxy? Compare the top email warmup tools by pricing, features, and integrations.
TrulyInbox, Boost Inbox, and Warmforge are the top Inboxy alternatives for 2026, priced from Free, $5/mo, and $12/mo respectively, all undercutting Inboxy's $47/mo entry plan. Other options include Warmup Inbox, Warmbox, Mailreach, Mailivery, Lemwarm, MailToaster, EmailWarmup.com, Mailwarm, InboxAlly, and Warmy, each with distinct feature sets and integrations.
Key takeaways
- Inboxy's entry plan is listed at $47/mo, making it more expensive than every alternative listed.
- TrulyInbox starts free and offers customizable reply rates ranging from 10% to 65% on paid plans.
- Boost Inbox starts at $5/mo and sends realistic emails daily while opening, bookmarking, and replying to a portion of them.
- Warmforge starts at $12/mo and tracks a per-mailbox Heat Score along with DNS, MX, and blacklist health checks.
- Warmup Inbox starts at $19/mo and exchanges email with a network of more than 30,000 real inboxes to build sender reputation.
Reviewed and updated September 2, 2026
Best Inboxy Alternatives in 2026
Inboxy is an email warmup tool built for email domain warming and deliverability. Its entry plan is listed at $47/mo. It may not be the right fit for every team. Here are the alternatives worth a look, drawn from each vendor's own published pricing and feature pages.
Why Consider Alternatives to Inboxy
Inboxy is a email warmup tool that improves deliverability by gradually increasing sending volume and boosting domain reputation. It runs warmup through a private network of headless browsers with AI-driven adjustments to sending metrics. Its entry plan is listed at $47/mo. Its own pages list primary inbox supercharger, domain score iq monitoring, ai powered inbox adjustments.
There are several reasons you might look at other options:
Feature fit: Your team may need specific capabilities that Inboxy doesn't offer or handles differently.
Integration needs: If your tech stack requires integrations that Inboxy doesn't support natively, an alternative might connect more smoothly.
Top Inboxy Alternatives
- Unlimited email account connections on all paid plans
- Customizable reply rate per plan (10% to 65%)
- Customizable email ramp-up schedules
- Human-like email interaction simulation
- and 4 more listed below
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- and 4 more listed below
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- and 4 more listed below
1. TrulyInbox
Starting Price: Free | Website: www.trulyinbox.com
Cost-effective email warmup platform that supports unlimited inbox connections on paid plans, with customizable reply rates, ramp-up schedules, and real-time deliverability scoring.
Key Advantages over Inboxy:
- Lower starting price (Free vs $47/mo)
- Offers a free tier (Inboxy does not)
- Listed by TrulyInbox and not by Inboxy (by each vendor's own wording): Unlimited email account connections on all paid plans, Customizable reply rate per plan (10% to 65%), Customizable email ramp-up schedules
Considerations:
- Fewer listed features (8 vs 9)
- Smaller integration ecosystem
Notable Features: Unlimited email account connections on all paid plans, Customizable reply rate per plan (10% to 65%), Customizable email ramp-up schedules, Human-like email interaction simulation, Real-time deliverability score tracking
Integrations: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho Mail, SMTP, Yahoo Mail
2. Boost Inbox
Starting Price: $5/mo | Website: boostinbox.com
Email warmup service that gradually increases sending activity to build trust with email providers. It sends realistic emails from your inbox on a daily basis, keeps them out of spam, opens and bookmarks them, and replies to a portion of them to generate positive interactions.
Key Advantages over Inboxy:
- Lower starting price ($5/mo vs $47/mo)
- Listed by Boost Inbox and not by Inboxy (by each vendor's own wording): Email Warmup, Fully Automated, Status Reports
Considerations:
- Fewer listed features (8 vs 9)
- Smaller integration ecosystem
Notable Features: Email Warmup, Fully Automated, Status Reports, Human Review, Premium Support
Integrations: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP
3. Warmforge
Starting Price: $12/mo | Website: warmforge.ai
Email warm up tool from the Forge Ecosystem that warms mailboxes with AI-written emails and tracks a per-mailbox Heat Score. Adds DNS, MX and blacklist health checks, placement tests and automatic removal of warm-up mail that lands in spam.
Key Advantages over Inboxy:
- Lower starting price ($12/mo vs $47/mo)
- Listed by Warmforge and not by Inboxy (by each vendor's own wording): Email Warm Up, Monitoring & Health Checks, Placement Tests
Considerations:
- Fewer listed features (8 vs 9)
- Smaller integration ecosystem
Notable Features: Email Warm Up, Monitoring & Health Checks, Placement Tests, Deliverability Boost, Always-On Warm Up
Integrations: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native)
4. Warmup Inbox
Starting Price: $19/mo | Website: www.warmupinbox.com
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.
Key Advantages over Inboxy:
- Lower starting price ($19/mo vs $47/mo)
- Listed by Warmup Inbox and not by Inboxy (by each vendor's own wording): Email warmup, Cold email sequence, Language warmup
Considerations:
- Smaller integration ecosystem
Notable Features: Email warmup, Cold email sequence, Language warmup, ESP warmup tool, IP warmup
Integrations: Gmail & Workspace, Outlook & Microsoft 365, Zoho Mail, Amazon SES, Mailgun, SendGrid, Sendinblue (Brevo), Any inbox with SMTP
5. Warmbox
Starting Price: $19/mo | Website: www.warmbox.ai
AI-powered email warmup tool that automates inbox warming with customizable recipes, spam score monitoring, and detailed analytics dashboards to improve cold email deliverability.
Key Advantages over Inboxy:
- Lower starting price ($19/mo vs $47/mo)
- Listed by Warmbox and not by Inboxy (by each vendor's own wording): Automated email warmup with AI-powered interactions, Customizable warmup recipes and strategies, Spam score monitoring and blacklist checks
Considerations:
- Fewer listed features (8 vs 9)
- Smaller integration ecosystem
Notable Features: Automated email warmup with AI-powered interactions, Customizable warmup recipes and strategies, Spam score monitoring and blacklist checks, Real-time analytics and reporting dashboard, DNS checker (SPF, DKIM, DMARC)
Integrations: Gmail, Google Workspace, Outlook, Microsoft 365, Yahoo Mail, Amazon SES, SMTP, Zoho Mail
6. Mailreach
Starting Price: $25/mo | Website: www.mailreach.co
Email warmup and deliverability platform that uses a smart algorithm with dozens of parameters to generate positive engagement signals, paired with built-in spam testing and DNS monitoring.
Key Advantages over Inboxy:
- Lower starting price ($25/mo vs $47/mo)
- Listed by Mailreach and not by Inboxy (by each vendor's own wording): Smart AI warming algorithm with dozens of parameters, Automated spam testing with 20+ credits included, MailReach Co-Pilot AI deliverability assistant
Considerations:
- Fewer listed features (8 vs 9)
Notable Features: Smart AI warming algorithm with dozens of parameters, Automated spam testing with 20+ credits included, MailReach Co-Pilot AI deliverability assistant, Blacklist, SPF, DKIM, and DMARC monitoring, Reputation tracking dashboard per inbox
Integrations: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho, SMTP, Mailgun, SendGrid, and 1 more
7. Mailivery
Starting Price: $29/mo | Website: www.mailivery.io
Email warm-up and deliverability tool that improves sender reputation by holding real conversations in your inbox through a peer to peer network of active mailboxes. Plans are priced on total daily warm-up volume and allow unlimited connected mailboxes, with inbox placement tests, blacklist monitoring and email verification included.
Key Advantages over Inboxy:
- Lower starting price ($29/mo vs $47/mo)
- Listed by Mailivery and not by Inboxy (by each vendor's own wording): Email Warm Up, Blacklist Monitoring, Email Verification
Considerations:
- Smaller integration ecosystem
Notable Features: Email Warm Up, Inbox Placement Test, Blacklist Monitoring, Email Verification, Custom Warm Up Templates
Integrations: Gmail, GSuite, Microsoft 365, SMTP, SendGrid
8. Lemwarm
Starting Price: $29/mo | Website: www.lemwarm.com
Email warmup tool from lemlist that builds sender reputation using a network of 20,000+ healthy domains, with industry-tailored warmup clusters and deliverability scoring.
Key Advantages over Inboxy:
- Lower starting price ($29/mo vs $47/mo)
- Listed by Lemwarm and not by Inboxy (by each vendor's own wording): Automated email warmup with human-like interactions, Warm-up network of 20,000+ healthy domains, Industry-tailored warmup clusters for natural patterns
Considerations:
- Fewer listed features (8 vs 9)
Notable Features: Automated email warmup with human-like interactions, Warm-up network of 20,000+ healthy domains, Industry-tailored warmup clusters for natural patterns, Deliverability score out of 100, Technical setup checker (SPF, DKIM, DMARC)
Integrations: Gmail, Google Workspace, Outlook, Microsoft 365, SMTP, lemlist (native), HubSpot (via lemlist), Salesforce (via lemlist), and 1 more
9. MailToaster
Starting Price: $29/mo | Website: mailtoaster.ai
Automated email warm-up service that builds, maintains and repairs sender reputation using peer-to-peer sending across a network of real inboxes. Warm-up profiles let you choose whether to build, maintain or repair reputation, and the system opens, replies to and removes messages from spam on your behalf.
Key Advantages over Inboxy:
- Lower starting price ($29/mo vs $47/mo)
- Listed by MailToaster and not by Inboxy (by each vendor's own wording): 100% automated email warm-up process, Trusted network of real inboxes for extra security, Positive engagement with your emails
Considerations:
- Fewer listed features (8 vs 9)
- Smaller integration ecosystem
Notable Features: 100% automated email warm-up process, Trusted network of real inboxes for extra security, Positive engagement with your emails, Available for GSuite and Outlook, Multiple warm-up profiles to meet your current needs
Integrations: Gmail, GSuite, Outlook
10. EmailWarmup.com
Starting Price: $29/mo | Website: emailwarmup.com
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.
Key Advantages over Inboxy:
- Lower starting price ($29/mo vs $47/mo)
- Listed by EmailWarmup.com and not by Inboxy (by each vendor's own wording): Personalized Warmup, Multiple ESP Warmup (Google, Outlook, etc.), Select Warmup Language
Considerations:
- Fewer listed features (8 vs 9)
- Smaller integration ecosystem
Notable Features: Personalized Warmup, Multiple ESP Warmup (Google, Outlook, etc.), Select Warmup Language, Deliverability Test, Google Postmaster Integration
Integrations: Google, Outlook, Office, SendGrid, Mailchimp, Klaviyo, Shopify, Salesforce
11. Mailwarm
Starting Price: $79/mo | Website: mailwarm.com
Email warmup and deliverability platform that generates engagement across a network of aged real inboxes and includes a deliverability expert on every plan. Each interaction produces several positive signals, such as marking as non-spam, opening, marking as important and replying.
Key Advantages over Inboxy:
- Listed by Mailwarm and not by Inboxy (by each vendor's own wording): B2B & B2C warm up, Spam score monitoring, Provider-Level warmup
Considerations:
- Higher starting price ($79/mo vs $47/mo)
- Smaller integration ecosystem
Notable Features: B2B & B2C warm up, Spam score monitoring, Provider-Level warmup, Warmup your email content, Authentication fix tools
Integrations: Gmail, Google Workspace, Outlook, Microsoft 365, Yahoo, Custom SMTP
12. InboxAlly
Starting Price: $149/mo | Website: www.inboxally.com
Enterprise-grade email deliverability platform that uses real seed emails and user-level engagement simulation to train ISPs to place your emails in the primary inbox.
Key Advantages over Inboxy:
- Listed by InboxAlly and not by Inboxy (by each vendor's own wording): Real seed email engagement (opens, replies, scroll depth), SmartRank optimization with per-ISP reputation scoring, Inbox simulation mimicking genuine user behavior
Considerations:
- Higher starting price ($149/mo vs $47/mo)
- Fewer listed features (8 vs 9)
Notable Features: Real seed email engagement (opens, replies, scroll depth), SmartRank optimization with per-ISP reputation scoring, Inbox simulation mimicking genuine user behavior, Custom content control for warmup emails, DKIM, SPF, and DMARC verification with correction guidance
Integrations: Gmail, Google Workspace, Outlook, Microsoft 365, SendGrid, Mailgun, Amazon SES, SMTP, and 1 more
13. Warmy
Starting Price: Contact Sales | Website: www.warmy.io
Automated email deliverability tool that warms up domains and IPs with AI-driven automation and a network of business or consumer mailboxes. Adds Google Postmaster integration, seed lists, deliverability insights and email verification in the same platform.
Key Advantages over Inboxy:
- Listed by Warmy and not by Inboxy (by each vendor's own wording): Email Warm-Up, Email Seed List, Deliverability Insights
Considerations:
- Higher starting price (Contact Sales vs $47/mo)
- Fewer listed features (8 vs 9)
Notable Features: Email Warm-Up, Email Seed List, Deliverability Insights, Google Postmaster Integration, Email Verification
Integrations: Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, Google Postmaster
Quick Comparison Table
| Tool | Starting Price | Features | Integrations |
|---|---|---|---|
| Inboxy (original) | $47/mo | 9 features | 9 integrations |
| TrulyInbox | Free | 8 features | 7 integrations |
| Boost Inbox | $5/mo | 8 features | 6 integrations |
| Warmforge | $12/mo | 8 features | 6 integrations |
| Warmup Inbox | $19/mo | 9 features | 8 integrations |
| Warmbox | $19/mo | 8 features | 8 integrations |
| Mailreach | $25/mo | 8 features | 9 integrations |
| Mailivery | $29/mo | 9 features | 5 integrations |
| Lemwarm | $29/mo | 8 features | 9 integrations |
| MailToaster | $29/mo | 8 features | 3 integrations |
| EmailWarmup.com | $29/mo | 8 features | 8 integrations |
| Mailwarm | $79/mo | 9 features | 6 integrations |
| InboxAlly | $149/mo | 8 features | 9 integrations |
| Warmy | Contact Sales | 8 features | 6 integrations |
How to Choose the Right Alternative
Consider these factors when evaluating your options:
Budget: Published entry prices in this roundup range from Free to $149/mo; 1 of the 13 tools quote on request. Make sure the tool you choose fits both your current budget and projected growth.
Email domain warming and deliverability volume: Match the tool's tier limits to your expected usage. Overpaying for capacity you don't need cuts into ROI.
Integration requirements: Check that the alternative connects with your existing CRM, email provider, and automation tools. Migration costs go up when you need to replace workarounds.
Team workflow: The best tool on paper is useless if your team doesn't adopt it. Prioritize platforms that fit how your team already works.
Final Recommendation
There is no single best alternative to Inboxy for every team. TrulyInbox has the lowest published entry price at Free. Warmup Inbox offers the broadest feature set. Trial each platform to see which one aligns with your workflow before committing.
Pricing and features verified as of September 2026. Visit each tool's website for the latest information.
Frequently asked questions.
Frequently asked questions- What is the cheapest alternative to Inboxy?
- TrulyInbox is the cheapest listed alternative, starting with a free tier, followed by Boost Inbox at $5/mo and Warmforge at $12/mo. All three undercut Inboxy's $47/mo entry plan while offering their own distinct feature sets.
- How does Warmforge differ from Inboxy?
- Warmforge starts at $12/mo and warms mailboxes with AI-written emails while tracking a per-mailbox Heat Score. It also adds DNS, MX, and blacklist health checks, placement tests, and automatic removal of warm-up mail that lands in spam, features not listed on Inboxy's pages.
- Does Warmup Inbox offer more than just email warmup?
- Yes, Warmup Inbox, starting at $19/mo, also offers cold email sequences, language warmup, ESP warmup, and IP warmup from the same dashboard. It exchanges natural-looking email with a network of more than 30,000 real inboxes to build sender reputation automatically.
- What does Inboxy include in its base plan?
- Inboxy's entry plan, listed at $47/mo, includes a primary inbox supercharger, domain score IQ monitoring, and AI powered inbox adjustments. It runs warmup through a private network of headless browsers with AI-driven adjustments to sending metrics.
- Why would a team look for an Inboxy alternative instead of using Inboxy?
- Teams may switch for feature fit or integration needs, since Inboxy may not offer specific capabilities a team requires or may not connect natively with certain tech stacks. Alternatives like TrulyInbox, Boost Inbox, and Warmforge list features and integrations Inboxy's own pages do not mention.
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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