Related Products
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About
E-Warmup is an AI-powered email deliverability and automated inbox warmup platform built to keep campaigns out of spam and the promotions tab.
Backed by 10+ years of manual deliverability consulting for 4,000+ clients, E-Warmup pairs your mailboxes with a peer-to-peer network of 40,000+ real inboxes to secure 98% primary inbox placement.
Key capabilities:
• AI Read Emulation: Simulates authentic human reading speeds, scroll pauses, and multi-language replies instead of detectable bot opens.
• Real-Copy Warmup: Train spam filters using your actual sales sequences and niche topics.
• Multi-ESP Support: Route warmup through Gmail, Outlook, Zoho, SendGrid, Amazon SES, or custom SMTP.
• 24/7 Reputation Shield: Continuous DNS health tracking (SPF, DKIM, DMARC), bounce monitoring, and automated blacklist removal across 100+ lists.
• Seed List Warmup: Protect non-SMTP platforms like Klaviyo and Mailchimp.
Start warm up & fix your deliverability free in 25 sec.
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About
InboxStack is an email deliverability intelligence platform built around Brain, a proprietary causal AI engine that identifies why emails miss the inbox — not just that they did. Most deliverability tools stop at monitoring: they show a drop in inbox placement or a blocklist hit and leave you to investigate. InboxStack goes further, correlating signals from your ESP, DNS authentication records (SPF, DKIM, DMARC), Google Postmaster Tools, Microsoft SNDS, and 50+ blocklists through a causal knowledge graph built on a 22-year deliverability knowledge base — tracing the actual root cause, whether it's a DKIM misalignment, IP reputation dip, or content trigger.
Onboarding starts with forwarding your email headers for an instant DNS/auth audit, no migration required. Teams that want ongoing monitoring can connect their ESP and Postmaster accounts, with optional seed testing for real inbox-vs-spam placement data.
Built especially for digital agencies and ESP's.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
SMEs, SaaS, Sales Team, Marketing Team, Outbound teams
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Audience
Any comapny who sends emails or manages email campaigns
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
$49/month
You can get started completely free with no credit card required and no expiration date. When you're ready to scale, we offer flexible plans billed monthly or annually (with 2 months free on yearly billing):
Basic ($49/mo or $41/mo billed yearly): Perfect for small teams getting started. Covers 5 mailboxes, up to 150 warmup emails daily per inbox, 10 DNS & inbox placement tests each month, blacklist tracking, and warmup using your own email copy. Growth ($99/mo or $83/mo billed yearly): Our most popular tier for growing outbound teams. Covers 20 mailboxes, up to 300 warmup emails daily per inbox, 25 monthly placement tests, advanced email monitoring, AI read emulation, warmup across 30+ languages, and premium support. Premium ($189/mo or $157/mo billed yearly): Designed for agencies and high-volume senders. Covers 40 mailboxes, up to 500 emails daily per inbox, 50 monthly placement tests, warmup provider selection, and a dedicated support channel. High Volume (Custom): For enterprise setups needing unlimited mailboxes, unlimited warmup volume, API/webhook integrations, white-label dashboards, and dedicated campaign management. All plans come with a risk-free 14-day money-back guarantee, allowing you to test our deliverability platform with complete confidence. Explore our full pricing and compare plans on our website.
Free Version
Free Trial
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Pricing
$49/month
Free Version
Free Trial
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Reviews/
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Reviews/
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Pros & Cons from Real UsersPros
Cons
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationE-Warmup
Founded: 2023
United States
e-warmup.com
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Company InformationInboxStack
Founded: 2025
India
inboxstack.com
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Alternatives |
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Categories |
Categories |
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Email Deliverability Features
Deliverability Alerts
Deliverability Reporting
DMARC Analytics
Email Address Verification
Email Content Testing
Email Previewing
Inbox Placement Testing
IP Blacklist Monitoring
Reputation Reporting
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Integrations
Gmail
Microsoft Outlook
Yahoo! Mail
Amazon SES
Google Workspace
Mailgun
Microsoft 365
SMTP Provider
SendGrid
SendPost
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Integrations
Gmail
Microsoft Outlook
Yahoo! Mail
Amazon SES
Google Workspace
Mailgun
Microsoft 365
SMTP Provider
SendGrid
SendPost
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