InboxPlan

What InboxPlan is

InboxPlan is a web service for automated email warm-up and deliverability monitoring. It generates industry-tailored warm-up messages and simulated two-way conversations, then schedules sending with randomized windows and gradual volume increases. InboxPlan says activity typically starts at 3–5 emails per day in week one and reaches 30–50 per day by week four; users can set manual limits for each account. A live monitor tracks sender score, inbox placement, and spam rates across major providers. Users can connect Gmail, Outlook, Zoho, or custom SMTP accounts, and warm multiple accounts in one workspace, subject to their plan’s allowance. Each account has its own threads, schedule, and reputation dashboard. InboxPlan says it uses OAuth and does not store account passwords. It names sales teams, agencies, startups, and businesses in SaaS, recruiting, real estate, finance, and e-commerce among its audiences. The paid service offers a seven-day free trial, and a credit card is required to begin.