Ballast
Ballast is a cold email platform for teams running one-to-one outbound campaigns from their own mailboxes. Users can connect Google Workspace, Gmail, Microsoft 365, or other SMTP/IMAP accounts; import leads; build multistep sequences with personalization and variants; and manage replies in a shared inbox. The platform includes mailbox warmup, sending schedules, domain checks, inbox-placement tests, bounce thresholds that can pause sending, and campaign analytics. Plans are priced by monthly email volume and include unlimited mailboxes and seats, API access, webhooks, and MCP tools. Teams can connect AI models for reply classification and drafting, configure Slack reply alerts, or automate workflows through n8n. CSV presets support lead imports from Apollo, Clay, Instantly, Smartlead, and Lemlist.
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LiteMail
LiteMail is a cold email infrastructure platform built to help teams create, configure, and manage fresh or pre-warmed Google Workspace and Microsoft 365 inboxes for outbound campaigns. It is designed for cold email that converts, giving agencies, SaaS teams, recruiters, and outbound operators a faster way to build deliverability-ready mailbox systems without manually handling complex setup. It supports fresh inboxes, pre-warmed inboxes, pre-warmed domains, bulk email inboxes, cold email infrastructure, and automated mailbox provisioning with US and EU IP options. LiteMail automates essential technical configuration, including DKIM, SPF, and DMARC, helping teams reduce setup errors and prepare domains and inboxes for more reliable sending. Users can quickly purchase and configure mailboxes, manage or transfer domains, export mailboxes to outreach tools, and organize infrastructure from one workflow.
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InboxKit
InboxKit is the leading cold email infrastructure platform that automates domain and mailbox provisioning at scale. We help cold email agencies, sales teams, and outbound consultancies set up Google Workspace and Microsoft 365 mailboxes in minutes, not hours. Key features include automated DNS configuration, one-click export to 15+ sequencers (Instantly, SmartLead, Lemlist, Reply.io, etc.), real-time deliverability monitoring, and bulk mailbox management. As an official Google Cloud Partner and Microsoft Partner, we provide enterprise-grade infrastructure without the manual setup overhead.
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EmailPal
EmailPal is cold email infrastructure built for outbound teams and agencies. It handles everything between buying a domain and delivering an email. You can register domains or bring your own, and EmailPal sets up SPF, dual-key DKIM, DMARC and MX records automatically. Mailboxes are provisioned in bulk with SMTP and IMAP credentials ready to use. Built-in warming sends to real Gmail, Yahoo and AOL accounts, and a mailbox is only marked campaign-ready once measured inbox placement proves it. You can also lease pre-warmed inboxes on aged domains and start sending the same day. Deliverability is managed automatically, with hourly reputation scoring per provider and automatic quarantine and recovery of problem addresses.
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