ColdSire provides premium Google/Microsoft mailboxes with instant setup and optimal deliverability for cold email campaigns. Manage domains with true isolation, pre-configured authentication, and seamless integration in minutes.
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ColdSire is recommended for cold emailers who need premium Google and Microsoft mailboxes with high deliverability, fast setup, and easy integration with tools like instantly.ai and smartlead.ai. It’s ideal for businesses and agencies wanting clean domains and simple pricing.
ColdSire offers premium Google Workspace and Microsoft 365 mailboxes at $6 per account per month, with domain registration priced at $15 per year. Each domain has its own isolated workspace for maximum deliverability and protection, and accounts are mixed with real businesses to maintain a strong reputation. Setup is instant and pre-configured with SPF, DKIM, DMARC, and easy integration with popular tools like Instantly and SmartLead.
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ColdSire requires basic configuration where you connect your Google or Microsoft mailboxes and verify domain settings like SPF, DKIM, and DMARC, which can be done solo in minutes. Once set up, you get instant access to a dedicated workspace for each domain, enabling seamless management and integration with tools like Instantly and SmartLead.
ColdSire
