ColdSire

Premium cold email infrastructure with deliverability

Why choose ColdSire?

ColdSire is a powerful GTM tool to accelerate your prospecting and go-to-market strategy.

🚀 15% of accounts dedicated to cold email to avoid bans
Total domain isolation to maintain a clean reputation
📊 Optimal configuration with pre-established SPF, DKIM, DMARC
🎯 Seamless integration with Instantly & SmartLead
🚀 Centralized inbox management
💡 Strategic Usage

ColdSire is perfect for businesses looking to run effective cold email campaigns without the risk of getting banned. With mailbox reputation and domain isolation, users can achieve maximum deliverability.

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AI French Touch Expert April 2026
"ColdSire provides a robust solution for cold emailing specialists. Its reputation and security features make it a wise choice."
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Pricing

$6/mo per account for Premium Google Workspace and Microsoft 365, $15/year per domain

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Visit Tool

coldsire.com