Inbrix
Provider Comparison & ROI Calculator

Stop paying the per-seat tax for custom-domain email.

Google Workspace and Microsoft 365 charge for every user and mailbox across every brand you launch. See how Inbrix replaces per-seat billing with one flat multi-domain workspace, unlimited free aliases, 1-click Cloudflare DNS setup, and native AI agent tools.

Calculate Your Savings View Full Feature Matrix
Interactive Cost Estimator

Configure your domains & addresses

3 domains
1 domain 5 domains 15 domains 25+ domains
10 addresses

Includes founder addresses, teammates, and role addresses like support@, billing@, and hello@.

2 seats 10 seats 25 seats 40 seats
Inbrix Pro Flat Workspace + Unlimited Aliases

Up to 5 custom domains, 25 mailboxes, 50 GB storage

$15/mo
$180/yr
Google Workspace Business Standard
$14/seat/month billed per mailbox
$140/mo
$1680/yr
Microsoft 365 Business Standard
$12.50/seat/month billed per user
$125/mo
$1500/yr
Fastmail Business
$6/user/month per inbox user
$60/mo
$720/yr
Estimated Annual Savings
$1,500/yr saved

Save 89% compared to Google Workspace Business Standard

Recommended Inbrix Plan Pro ($15/mo)
Custom Domains Included Up to 5 domains
Dedicated Team Mailboxes Up to 25 mailboxes
Role Aliases (support@, hello@, etc.) Unlimited Free ($0)
Shared Calendar Included
Encrypted File Drive 50 GB R2 Storage
Start 7-Day Free Trial on Pro

$0 due today · 1-click Cloudflare DNS setup · Cancel anytime

Side-by-Side Specification

Inbrix vs. Legacy Business Email Providers

A factual breakdown of pricing models, multi-domain architecture, DNS onboarding, and AI agent readiness.

CapabilityInbrixGoogle WorkspaceMicrosoft 365Fastmail / Zoho
Pricing ModelFlat Workspace ($7–$39/mo)$6–$18 / user / month$6–$22 / user / monthPer-user monthly billing
Custom Domains Included2 to 100 custom domainsSecondary domain limitationsAdmin center setup per domainTier-restricted domain caps
Unlimited Role Aliases (support@, billing@)$0 Included on all plansRequires Google Groups or extra seatsShared mailbox admin setupAlias caps per user
Cloudflare 1-Click DNS SetupAutomated in < 60 seconds15–30 min manual DNS recordsManual MX, SPF, CNAME setupManual TXT/MX copy-paste
Zero Website Downtime GuaranteePre-flight DNS check (Mail records only)Manual DNS conflict resolutionCan prompt full nameserver switchManual DNS management
Shared CalendarIncluded on every planIncluded with the suiteIncluded with the suiteIncluded on paid plans
AI Agent & MCP Server IntegrationHosted MCP (26 tools) + REST API v1Requires GCP OAuth project & Pub/SubRequires Azure AD Graph API registrationLegacy IMAP/JMAP only
Inbound HMAC-SHA256 WebhooksReal-time JSON payload deliveryNot built-inNot built-inNot built-in
Data Privacy & AI TrainingZero ads, never trains on your mailEcosystem telemetryEnterprise ecosystem telemetryPrivate inbox only
Detailed Breakdowns

How Inbrix compares to each provider

Comparison 01 Most Requested Switch

Inbrix vs. Google Workspace

Google Workspace is built for large corporations that need Google Docs, Meet, and Drive bundled per employee. For founders, agencies, and SaaS teams running multiple domains, paying $6 to $14 per address quickly balloons into hundreds of dollars a month.

  • 01. Multi-Domain Simplicity: Manage 2 to 100 domains in one unified Inbrix inbox instead of juggling multiple Chrome profiles.
  • 02. Zero Per-Seat Tax: Create support@, billing@, hello@, and team mailboxes under a flat monthly rate.
  • 03. Works with Gmail if You Want: Prefer Gmail's interface? Use Inbrix SMTP/IMAP credentials with Gmail's "Send mail as" feature anytime.
Comparison 02 Outlook & Exchange Alternative

Inbrix vs. Microsoft 365 (Outlook)

Microsoft 365 requires navigating Entra ID, Exchange Admin Center, and complex per-seat licensing tiers just to set up custom-domain addresses and shared mailboxes.

  • 01. 60-Second Onboarding: Connect Cloudflare domains in 1 click without touching Exchange admin portals.
  • 02. Fast, Minimalist Interface: Keyboard-first conversation threads without enterprise bloatware.
  • 03. Shared Calendar: Meetings live on the same workspace as the mailboxes.
Comparison 03 Developer & AI Ready

Inbrix vs. Fastmail

Fastmail is a respected personal webmail host, but it bills per user and focuses on traditional IMAP/JMAP personal mail rather than programmable team workflows and AI agent infrastructure.

  • 01. Native MCP & REST API: Connect Claude, Cursor, ChatGPT, and custom backend webhooks in seconds.
  • 02. Mail Clients: Use Apple Mail or Gmail with the custom domain.
  • 03. Team Mailboxes Without Per-User Fees: Add up to 25 mailboxes on Pro ($15/mo yearly) or 100 on Scale ($39/mo yearly).
Comparison 04 Zoho & Forwarding Alternative

Inbrix vs. Zoho Mail & Email Forwarders

Basic email forwarders (like ImprovMX or raw Cloudflare Email Routing) only forward inbound mail and leave you struggling to reply from your custom domain with proper DKIM/SPF alignment. Zoho Mail upsells fragmented CRM modules and charges per user.

  • 01. Full Inbound & Outbound Deliverability: Send and reply from any domain address with 2048-bit DKIM, SPF, and DMARC alignment.
  • 02. Dedicated Encrypted R2 Drive: Up to 250 GB of attachment and cloud file storage included.
  • 03. Zero Upsell Clutter: Clean, focused workspace crafted for speed and clarity.
Zero-Interruption Switch

Switch to Inbrix in 4 steps without losing a single email

Inbrix inspects your existing DNS records before applying changes so your website stay 100% untouched.

STEP 01

Create your workspace

Start your 7-day free trial with $0 due today and enter your custom domain name.

STEP 02

Mirror your addresses

Provision your existing team mailboxes and unlimited free aliases (support@, hello@, billing@) before switching DNS.

STEP 03

1-Click DNS cutover

Connect Cloudflare in 1 click or follow guided registrar steps for Namecheap, GoDaddy, Route 53, or Porkbun.

STEP 04

Cancel legacy per-seat billing

Once live inbound verification passes, cancel your old per-seat subscription and keep 100% ownership of your domain.

Comparison FAQ

Common questions about switching to Inbrix

Google Workspace ($14/user/month on Business Standard) and Microsoft 365 ($12.50/user/month) bundle heavy office suites and charge per person or mailbox. Inbrix is custom-domain business email, shared team inboxes, and a calendar, billed at a flat workspace price with unlimited free aliases.

Ready to unify your custom domains under one flat price?

Start your 7-day free trial with $0 due today. Connect your first domain in under 60 seconds.

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