ColdStack

ColdStack

ColdStack.co
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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.

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.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

B2B companies

Audience

Agencies seeking a tool offering full control over their infrastructure and client data through email sequencing

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

ColdStack.co
Founded: 2025
United States
www.coldstack.so/

Company Information

EmailBison
United States
emailbison.com

Alternatives

Alternatives

PrimaryHub

PrimaryHub

Voltic
Rubedo

Rubedo

Rubedo.ai

Categories

Categories

Integrations

EmailGuard
Gmail
Slack

Integrations

EmailGuard
Gmail
Slack
Claim ColdStack and update features and information
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