Unspam.email vs Warmforge

Unspam.email is an email deliverability platform for examining spam signals, sender authentication, blacklists, previews, and inbox placement. Spam tests assess authentication, sender reputation, blacklists, and message content, then show which checks affected the score. Inbox placement tests send a campaign to seed mailboxes at Gmail, Outlook, Yahoo, and other providers and report where it landed. Email previews cover rendering across more than 50 real clients and devices in light and dark modes. Scheduled tests can track placement and spam scores and send alerts by email when results decline. Its API has 39 endpoints across seven areas and can test mail sent through SES, Postmark, SendGrid, Mailgun, or a sender’s own SMTP setup; an MCP server lets compatible AI clients run tests and retrieve results. The free plan includes 21 tests per month, unlimited sender accounts, and 14-day data retention, but excludes DMARC monitoring and full API access. Custom costs $5 a month, with a $5 monthly minimum and pay-per-test rates.

Warmforge is an email warm-up and deliverability service for Google Workspace and Outlook mailboxes. It uses AI-written messages to imitate mailbox activity and automatically warm accounts, recommending at least two weeks before outreach. Health Checks review DNS and MX records and check blacklist status. Placement tests show delivery rates across email providers; every plan includes one free test each month. Warmforge says it removes warm-up messages that reach spam. Its curated pool uses aged accounts and is dominated by Google Workspace and Microsoft 365 mailboxes. Monitoring covers inbox placement, sender reputation, authentication, and blocklists. Users can explore features for free, but mailbox warming requires purchased slots, with one mailbox per slot. Platforms include web, macOS, Windows, and API access. Forge CLI manages mailboxes, statistics, and placement tests. Pricing starts at $10 a month, with additional testing plans available.