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.
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.
Ranked #115 on TrustMRR
840 active subscriptions
Imad Bouziani899 followers on ๐
United StatesRevenue is verified with
Stripe API key.Last updated: Nov 15, 2026, 04:32 PM
The Premium Cold Email Infra that scales.
Unmatched deliverability with Google/Microsoft mailboxes from a premium pool mixed with real businesses to avoid accounts being flagged and banned.
Audience
Cold Emailers
Pricing
$6/mo per account
Team size
2โ5 people
Funding
Bootstrapped
Domain Rating
coldsire.com
Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.
Marketing channels
Screenshot
coldsire.com
"Agency customer book on Google and Microsoft mailboxes: 180 paying companies, about 1,530 mailboxes and 1,423 domains. Runs with two contractors and almost no founder time. Full numbers pack, reconciled to Stripe and supplier invoices, under NDA. Offers reviewed Monday 2 November."
Imad Bouziani
Founder of ColdSire
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