Maildeck

MailDeck specializes in high-volume cold email infrastructure for teams sending millions of emails monthly. The platform offers three infrastructure tiers: SMTP ($0.50/inbox), Google Workspace ($2.99/inbox), and Microsoft 365/Outlook tenants ($30/tenant). All services run on official Microsoft and Google IPs with no shared pools, differentiating from competitors and improving deliverability. MailDeck manages 833,900+ inboxes globally, sends 7.5M+ emails per day, serves 1,631+ clients, and manages 3,000+ domains. Setup is fast: Outlook in 48-72 hours, SMTP in 24 hours, Google instantly. All accounts include automatic warmup to establish sender reputation. The platform directly addresses deliverability and infrastructure challenges faced by cold email agencies and high-volume sales teams seeking reliable, compliant email infrastructure.