InboxCabin vs FutureMail

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

InboxCabin compared with FutureMail
Detail	InboxCabin	FutureMail
What it does	Multiple email accounts in one Windows desktop app	Email hosting for your own domain, built for people and their AI agents
Stage	Not given	Startup
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	$4/month (billed annually as $48/year) or $299 one-time for lifetime access. Both plans include unlimited email accounts and up to 5 computer activations.	Free plan: sandbox domain (myapp.fm-sandbox.dev), up to 10 recipients per rolling 24 hours (300 a month), no card required. Pro: $20/month, 50,000 recipients a month, unlimited custom domains and addresses, agent inboxes, REST API, CLI and MCP server. Charged in USD monthly; hard limits with no over
Key features	Unlimited email accounts Support for Gmail, Microsoft, Yahoo, Zoho and custom webmail Separate account sessions Instant account switching Up to 5 computer activations per license 30-day free trial Sessions maintained between restarts	Unlimited domains and email addresses Agent inboxes with scoped API keys REST API and Resend-compatible API Remote MCP server Keyboard-first web inbox with threading and search SMTP relay and CLI tool DKIM, SPF and DMARC setup with live verification Webhooks, templates and scheduled sends Open and click tracking Team roles and audit log without per-seat fees
What makes it different	One unified desktop workspace for all email accounts No need to sign in repeatedly for each account Supports custom webmail providers Free trial with no credit card required	Agent-native with scoped API keys and MCP server integration Resend-compatible API for drop-in migration One flat price for unlimited domains and team members Built-in deliverability with automatic suppression Transactional email only for consistent deliverability
Community votes	0	0
DR (Domain Rating by Ahrefs)	22 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	7	2
Citation Flow (Majestic)	20	22
Referring domains (Majestic)	15	10

5 details filled in for both companies.

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