Warmbox
VerifiedAI powered email warmup to build sender reputation before campaigns
See all screenshots - Deployment Cloud Based
- Starting price $19
- Free trial Not offered
- Best for Freelancers, Startups, SMEs
What is Warmbox?
Warmbox is an AI powered email warmup service that connects to a mailbox and exchanges realistic, GPT generated emails across a private network of more than 35,000 inboxes spanning over 100 countries to build sender reputation. It automatically removes warmup emails from spam folders, opens and replies to a portion of them, and generates the positive engagement signals mailbox providers look for.
Plans are priced by the number of inboxes warmed, with each tier bundling a matching number of team seats and a daily sending cap that increases with the plan. Warmbox also runs blacklist and DNS checks covering SPF, DKIM, and DMARC, and supports Gmail, Outlook, Yahoo, and other providers through OAuth or SMTP connections.
Key Features of Warmbox
Warmbox lists 8 documented features, including GPT-4 generated realistic warmup emails, Private network of 35,000+ inboxes across 100+ countries and Automatic spam folder removal and email opens. The list below covers what the product does rather than how it is marketed.
- GPT-4 generated realistic warmup emails
- Private network of 35,000+ inboxes across 100+ countries
- Automatic spam folder removal and email opens
- Customizable warmup recipes (growth, flat, random, custom)
- Deliverability and reputation analytics
- Blacklist and DNS (SPF/DKIM/DMARC) monitoring
- Multi-provider support (Gmail, Outlook, Yahoo, SMTP, and more)
- GDPR and CCPA compliant data handling
Warmbox Pricing
Warmbox lists 3 plans, from $19 to $159.
Solo
$19
per month
1 inbox warm up, 50 emails per day, 1 team member, premium support. Monthly billing; yearly billing drops it to $15 per month.
Start-up
$79
per month
3 inbox warm ups, 250 emails per day, 3 team members. $69 per month on yearly billing.
Growth
$159
per month
6 inbox warm ups, 500 emails per day, 6 team members, enterprise support. $139 per month on yearly billing.
Warmbox Specifications
Warmbox is available on web app.
- Deployment
- Cloud Based
- Billing cycle
- Monthly
- Desktop
- Web App
- Languages
- English
- Built for
- Freelancers
- Startups
- SMEs
- Agencies
- Support
- Live Support
- Integrations
- Gmail, Outlook 365, Yahoo Mail, iCloud, AOL, Yandex, Zoho, SendGrid, Sendinblue, Amazon SES, Mailgun, SMTP
- Public API
- No
- Free trial
- No
- Free plan
- No
- Runs in browser
- Yes
- Customisable
- Yes
- Website
- warmbox.ai
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Alternatives to Warmbox
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