• Warm up your Cold Emails!
  • Generate emails with better reach
  • Connect to your inbox almost instantly


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Warmbox is an innovative AI-powered platform that revolutionizes email marketing by optimizing email deliverability and engagement rates. With its advanced algorithms, it provides real-time insights and recommendations to enhance email campaigns, ensuring they land in the recipient’s inbox and generate maximum impact. Warmbox empowers businesses to achieve higher email performance and effectively connect with their audience.


What is Warmbox?

Warmbox is an email warm-up tool that focuses on improving email deliverability and reputation. It is designed to prevent your emails from landing in spam folders and ensure they reach the inboxes of your leads. Trusted by over 2,000 companies, Warmbox offers a solution to the common problem of emails being marked as spam, which can negatively impact sender reputation and deliverability rates.

Email warm-up is essential because a significant portion of emails often end up in spam folders. Without proper warm-up, running cold email campaigns for sales or marketing purposes can be risky, as it can lead to poor sender reputation and low deliverability rates. Warmbox addresses these concerns by enabling users to send cold email campaigns that have a higher chance of reaching the inbox, generating more leads, and increasing sales.

Warmbox Product Demo

Warmbox Use Cases

  • Cold Email Campaigns: Warmbox is perfect for sales and marketing teams running cold email campaigns. By using Warmbox to warm up their email inboxes, they can significantly improve their email deliverability rates. With increased deliverability, their cold emails have a higher chance of reaching the intended recipients' inboxes, leading to more leads and increased sales.
  • Sender Reputation Management: Warmbox helps users manage and improve their sender reputation. When emails consistently land in spam folders, it negatively affects the sender's reputation, potentially leading to blacklisting by email providers. By warming up their inboxes with Warmbox, users can establish a positive sender reputation, ensuring their emails are seen as safe and reliable by email providers.
  • Deliverability Optimization:
    Warmbox's automated interactions with emails, such as opening, bookmarking, and replying, help optimize email deliverability. These actions simulate human-like behavior, signaling to email providers that the emails are relevant and desired by recipients. As a result, the emails are more likely to bypass spam filters and land in the recipients' inboxes.
  • Inbox Reputation Monitoring:
    Warmbox provides detailed reports and analytics to monitor inbox reputation. Users can track the progress of their warm-up efforts and observe improvements in deliverability over time. The reports offer insights into how emails are being perceived by email providers, allowing users to make adjustments and maintain a positive inbox reputation.
  • Multi-Account and Team Usage:
    Warmbox offers multi-account support, making it suitable for agencies and teams. Multiple team members can connect their individual inboxes to Warmbox, allowing for efficient warm-up across the organization. The tool also provides features like in-app onboarding, team member management, and live chat support, facilitating seamless collaboration and assistance within teams.

Warmbox Pricing Plans

Warmbox Pricing Plans

50 emails/day for $15

Warmbox Alternatives

  • Constant Contact: Constant Contact is an email marketing platform that helps businesses of all sizes connect with their customers.
  • MailerLite: MailerLite is an email marketing and landing page builder for businesses of all sizes.
  • Dotdigital Dotdigital is a customer engagement platform that helps businesses of all sizes build stronger relationships with their customers.
  • Offer Several Paid Solutions
  • Email Deliverabilty Monitoring
  • Makes Email Marketing simple
  • Free Plan Has No Inbox Warmups

Warmbox Details

AI Technology
  • Create emails that never go to Spam
  • $15/month
  • Add multiple inboxes
Try Warmbox

Get Warmbox. Sign up for free

Platform Security
Risk-Free & Money-Back
Services & Features
Customer Service
8.8 Overall Rating

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