Inboxkit Information

InboxKit is a complete cold email infrastructure platform built for agencies, sales teams, and outbound-driven businesses. We provision official Google Workspace, Microsoft 365, and Azure mailboxes and get teams sending in under 10 minutes. Most providers give you mailboxes and leave the rest to you. We don't. What we provide: - Official Google, Microsoft & Azure mailboxes at $2.50/mailbox - Automated DNS setup — SPF, DKIM, DMARC configured instantly - Isolated domain panels so one bad domain never kills the rest - Built-in email warmup with smart volume ramping - InfraGuard — 24/7 blacklist monitoring, DNS watchdog & bounce alerts - Inbox placement tests to catch deliverability issues before they cost you - 15+ sequencer integrations including Smartlead, Instantly & Apollo - Full API access with webhooks for custom workflows - Bulk mailbox setup — go from 1 to 1,000 with zero manual work The result: a consistent 95%+ inbox delivery rate at scale. We're the only official Google Cloud Partner in the cold email infrastructure space. That's not a badge- it means better infrastructure, stronger deliverability, and accounts that don't get suspended overnight. 500,000+ mailboxes managed. 1,000+ agencies running outbound on InboxKit. Trusted by Understory, Anevo Marketing, 11x, Unify, PwC, Zendesk, and Gorgias. Everything you need to land in primary. That's what we're built for.