# Maildoso documentation Research date: 2026-08-24 Documentation coverage: not-retrieved. Reference index, not a mirror of complete vendor documentation. Retrieved pages do not prove the MCP works. ## What it does Cold-outreach mailbox and domain infrastructure provider - sells pre-configured SMTP mailboxes and Google Workspace accounts (with SPF/DKIM/DMARC already set up) built specifically for cold email sending, starting at $0.49/mailbox. ## Access and connection MCP support: official Access requirements: paid - bundled into paid mailbox plans (starting $0.49/mailbox up to $499/mo for 1,000 mailboxes); no free tier. Authentication: unknown - described only as "API and MCP access" bundled into every plan, without a documented auth mechanism in sourced pages. Research checked: 2026-08-24 These details come from catalog research. Check vendor sources for current setup instructions; this is not proof of a tested connection. ## Sources - https://maildoso.ai/ - https://maildoso.ai/blog/recommendations/cold-email-infrastructure-scale-safely - https://maildoso.ai/blog/tools/zapmail ## Retrieved pages