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InboxPlan

Input—per 1M tokens
Output—per 1M tokens
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About

InboxPlan is ranked #12 of 23 in email Warmup Software on Inferse. It runs on Web. There is no free plan. A free trial is offered.

Compared on email Warmup Software

Free plan
Noinboxplan.com
Warmup network
privateinboxplan.com
Custom warmup schedule
Yesinboxplan.com
Spam monitoring
Yesinboxplan.com
Multiple mailboxes
Yesinboxplan.com

Facts

Purpose
InboxPlan offers automated email warm-up, smart scheduling, and deliverability analytics.inboxplan.com · 3 Oct 2026
AI warm-up
Its AI generates unique warm-up emails and coherent conversation threads tailored to the user's industry.inboxplan.com · 3 Oct 2026
Reply simulation
The service simulates two-way AI conversations to create engagement signals.inboxplan.com · 3 Oct 2026
Deliverability monitoring
A live health monitor tracks sender score, inbox placement, and spam rates across major providers.inboxplan.com · 3 Oct 2026
Seed network
InboxPlan says it has a private network of 500+ verified seed inboxes.inboxplan.com · 3 Oct 2026
Scheduling
It randomizes send windows and automatically ramps up sending volume; users can also set manual limits per account.inboxplan.com · 3 Oct 2026
Integrations
The site says users can connect Gmail, Outlook, Zoho, or custom SMTP accounts.inboxplan.com · 3 Oct 2026
Account security
InboxPlan says it uses standard OAuth and does not store users' passwords.inboxplan.com · 3 Oct 2026
Setup
The site says setup takes under two minutes.inboxplan.com · 3 Oct 2026
Warm-up volume
InboxPlan says it typically starts at 3–5 emails per day in week one and scales to 30–50 per day by week four.inboxplan.com · 3 Oct 2026
Multi-account support
Users can connect multiple accounts, with each account getting its own warm-up threads, send schedule, and reputation dashboard, subject to the plan.inboxplan.com · 3 Oct 2026
Intended users
The homepage names sales teams, agencies, and startups, and lists SaaS, recruiting, real estate, finance, and e-commerce businesses among its audiences.inboxplan.com · 3 Oct 2026

Company

Founded
2022inboxplan.com · 28 Sept 2026
Headquarters
San Francisco, California, United Statesinboxplan.com · 28 Sept 2026

Best InboxPlan alternatives

See all 12
8.9 TrulyInbox $1.83/mo first paid tier Free plan 8.7 Warmerly $19/mo first paid tier Free plan 8.5 Mailreach $19.50/mo first paid tier 8.3 EmailWarmup $19/mo first paid tier 8.0 MailStrike $1.50/mo first paid tier Free trial 7.9 InboxWarm.ai $5/mo first paid tier Free trial

Where it ranks on Inferse

Sources