How to organize and track follow-ups across Smartlead, Instantly, Apollo and other sending tools

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Master Inbox

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Master Inbox unifies replies from all your sending tools, Smartlead, Instantly, Apollo, and more into one powerful inbox. No matter what platform you use, we ensure you never miss a reply. Built for outbound teams and agencies, Master Inbox centralizes Email and LinkedIn responses, adds smart filtering, tagging, and follow-up tools so you stay organized, close faster, and scale confidently without switching your current tools.

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What to expect from an ideal product

1. Brings all your replies from different sending platforms into one place so you can track everything without jumping between tools
2. Lets you tag and filter follow-ups by priority, deal stage, or campaign type to keep your pipeline organized
3. Shows you which prospects need attention with smart notifications so nothing falls through the cracks
4. Gives you quick follow-up templates and scheduling right from the unified inbox to speed up your response time
5. Tracks conversation history across all platforms so you can see the full context before reaching out again