How to Get Email From Multiple Domains Into One Inbox (4 Ways Compared)

The classic. Forward each domain’s mail into your main Gmail (via your registrar, Cloudflare Email Routing, or another Gmail’s forwarding), then add each address under “Send mail as” so you can reply from it. Cost: zero. The catch is setup friction multiplied by the number of addresses: forwarding verification links, SMTP credentials per address, and Gmail’s sharp edges — it rejects forwarding targets containing “+”, and forwarding only covers mail that arrives after you enable it. We documented the full setup, including every error message we hit, in the Gmail forwarding guide and the send-from-Gmail guide. For one or two addresses this is a fine answer. At five domains it becomes a hobby.

Providers like Zoho Mail can attach several domains to one organization, and their paid tiers let one user receive at addresses across those domains. You get a real mailbox with real webmail, which some people prefer. The trade-offs: you now live in a second inbox (or wire it back into Gmail via IMAP anyway), per-user pricing grows with the team, and multi-domain setup means verifying DNS, MX, SPF, and DKIM once per domain. Solid choice if you want a genuine separate mailbox rather than consolidation.

Postfix or Mailcow on a VPS, every domain you like, total control, no per-mailbox fees. It’s also the option we’d talk most people out of. Deliverability is a part-time job: fresh IPs start with no reputation, one blocklist entry breaks outbound mail for every domain at once, and you own backups, spam filtering, and upgrades forever. If you already run servers for a living and enjoy it, you know who you are. Everyone else pays more in hours than the alternatives cost in dollars.

This is the approach we build. All Your Inboxes takes mail sent to your addresses across all your domains — info@, support@, hello@ — and delivers each message as a notification into the Gmail you already look at, tagged by project. Hit Reply and the answer goes out from your own domain, not from your Gmail address. For domains on Cloudflare, creating a new address takes about 10 seconds; no MX archaeology. And the content is deleted from our servers after delivery — there is no second inbox to secure or check (details on the security page).

One domain, patience for setup, zero budget: Way 1 — genuinely free and it works. Need a real standalone mailbox per company: Way 2. Sysadmin by trade: Way 3, with our respect. Multiple domains and a preference for spending the evening on your actual product: Way 4. Free covers one inbox; Starter is $6.99/mo for five inboxes with replies from your domain, and Pro at $14.99/mo adds 20 inboxes plus AI spam filtering, translation, and auto-replies — the full breakdown is on the pricing page, and the Free plan needs no card — one inbox, free forever. If you go DIY instead, our guides above will save you the traps we already paid for.