ColdStackColdStack.co
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Related Products
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About
Stop losing deals in the 2-hour window between lead reply and your response. ColdStack brings every cold email reply from Instantly, Smartlead, and EmailBison into a single Slack channel where your team can see and act instantly.
Each reply triggers a real-time notification with full engagement context—who opened what, when, and how many times. Your team replies directly from Slack, and ColdStack syncs everything back bidirectionally to your source platform. No more toggling between dashboards, Gmail, and Slack.
Built for cold email agencies and sales teams who live in Slack. Mobile-ready through Slack's app.
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About
EmailBison is a white-labeled, privately hosted email sequencing software designed specifically for agencies aiming to supercharge their deliverability. It allows users to host their own email sequencing platform on dedicated servers with isolated IPs, ensuring optimal network isolation. The platform offers powerful email sequencing with multi-step touchpoints, enabling comprehensive outreach strategies. Users can conduct AB split tests for every step of their sequence to determine the most effective email copies. EmailBison supports unlimited workspaces, providing complete data isolation for every client, and offers unlimited contact storage with fully automated statuses. Built-in contact verification ensures that contacts are valid before initiating outreach campaigns. To further enhance isolation, the software supports multiple dedicated sending servers. Custom tags allow for efficient tagging and filtering of contacts based on user-defined criteria.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
B2B companies
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Audience
Agencies seeking a tool offering full control over their infrastructure and client data through email sequencing
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Supported
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Company InformationColdStack.co
Founded: 2025
United States
www.coldstack.so/
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Company InformationEmailBison
United States
emailbison.com
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Categories |
Categories |
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Integrations
EmailGuard
Not Supported
Gmail
Supported
Slack
Supported
Vinna AI
Not Supported
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Integrations
EmailGuard
Supported
Gmail
Not Supported
Slack
Not Supported
Vinna AI
Supported
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