ColdSire

The Premium Cold Email Infra that scales.

#134 of 506 on our verified revenue leaderboard. Revenue verified by TrustMRR through Stripe (API key), synced 2026-11-04. Source.

The problem ColdSire solves

Unmatched deliverability with Google/Microsoft mailboxes from a premium pool mixed with real businesses to avoid accounts being flagged and banned.

About ColdSire

ColdSire sells Google Workspace and Microsoft 365 mailboxes to cold-email agencies, set up automatically: domains, DNS, SPF, DKIM and DMARC, profiles, and connection to Instantly and Smartlead; $252k net revenue over the last 12 months. Runs with two contractors. Revenue has declined in 2026 with no sales effort, so a buyer with its own mailbox supply or a sales team gets the most from it.

Descriptions are provided by the founder on TrustMRR. Revenue figures are verified.

Founder

Imad Bouziani

Founded

2023-05-18

Country

United States

Payment provider

Stripe (API key)

Active subscriptions

858

Pricing

$6/mo per account

Who it is for

Cold Emailers

Audience

B2B

Funding

Bootstrapped

Website

coldsire.com

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