Keep a few on Google or Microsoft. Move the rest to GINbox.
Paying Google Workspace or Microsoft 365 for every person, when only a few really need it? With split delivery, the director or accounts team stay where they are and everyone else moves to GINbox — on the same domain, with the same addresses.
Updated 27 October 2026.
New · set up together with our team
Can one domain have two email providers?
Yes. One domain can use two email providers at the same time. This is called split delivery: each address on the domain lives with one provider, mail for each person is delivered to wherever their mailbox is, and the outside world sees a single company. Google Workspace and Microsoft 365 both support it, and GINbox sets up its side for you.
- Google calls it split delivery (Google Admin console, Gmail, Routing).
- Microsoft calls it an internal relay accepted domain, with a connector to the other provider.
How split delivery works
Each address on your domain lives in one place. You choose who stays on Google Workspace or Microsoft 365; everyone else gets a GINbox mailbox.
| Person | Mailbox on | Paid to |
|---|---|---|
| director@yourcompany.com | Google Workspace or Microsoft 365 | Google or Microsoft, as today |
| accounts@yourcompany.com | Google Workspace or Microsoft 365 | Google or Microsoft, as today |
| sales@, support@ and everyone else | GINbox | GINbox, per mailbox |
Outside senders see one company and one domain. Colleagues mail each other across the two sides as before, and nobody has to change their address.
Two ways to set it up
| Google or Microsoft first (recommended) | GINbox first | |
|---|---|---|
| Your MX records | Stay as they are | Point to GINbox |
| The people who stay | Never depend on GINbox | Their mail passes through GINbox first |
| Spam and virus filtering for everyone | Each side filters its own people | GINbox filters all incoming mail |
| Finishing the move later | Change the MX once, then switch off | Just switch off — no DNS change |
If GINbox were ever unreachable, mail is not lost either way: Google or Microsoft keeps it and tries again, and senders’ servers retry for days. GINbox also runs on a standby server that takes over within minutes.
What it can save
An example: a team of 20, where 3 people need Google Workspace and the rest need email. Google’s India price page listed Business Starter at ₹270 per user per month on 23 October 2026, annual commitment, GST excluded.
| Everyone on Google Workspace Starter | 3 on Google, 17 on GINbox 10 GB | |
|---|---|---|
| Google Workspace | 20 × ₹270 = ₹5,400 | 3 × ₹270 = ₹810 |
| GINbox (billed yearly) | — | 17 × ₹69 = ₹1,173 |
| Per month | ₹5,400 | ₹1,983 |
Work out your own saving
- Everyone on Google or Microsoft
- ₹5,400 /month
- 3 there, 17 on GINbox
- ₹1,983 /month
- You save
- ₹41,004 a year
Before GST. GINbox prices are billed yearly, with no first-year discount that jumps at renewal; enter the price you actually pay Google or Microsoft.
An illustration, not a quote: Google’s prices change and differ by plan (Base costs less, with less storage), and Microsoft 365 is priced differently. Check their current price pages. GINbox prices are on our pricing page, with no first-year discount that jumps at renewal.
Microsoft, Outlook, Microsoft 365, Google, Google Workspace, Gmail and Zoho are trademarks of their owners. GINbox is not affiliated with or endorsed by any of them. Facts about other products come from their own websites on the date shown and may have changed since: check their pages before you decide.
Split delivery, dual delivery and moving everyone
| Split delivery | Dual delivery | Moving everyone | |
|---|---|---|---|
| Where each person’s mail goes | One provider per person | A copy to both providers | GINbox only |
| Seats paid to Google or Microsoft | Only the people who stay | Everyone, on both sides | None |
| Typical use | Saving licences for good | Trials and migrations | Leaving Google or Microsoft |
Moving everyone is simplest when nobody depends on Drive, Docs or Teams: see moving from Google Workspace or from Microsoft 365.
What stays safe
- Only the addresses you list are passed to Google or Microsoft. Nobody can use the arrangement to send mail through GINbox anywhere else.
- Fake mail claiming your domain is refused unless it passes your domain’s own checks (DMARC). Genuine mail from your people at Google or Microsoft passes.
- One address, one place: an address cannot be both a GINbox mailbox and one that stays. GINbox refuses the second.
- Mail already in GINbox is never moved or changed by this setting.
Getting started
- Tell us your domain and the people who should stay on Google Workspace or Microsoft 365.
- We switch split delivery on for your domain. In your GINbox admin panel you list the people who stay; the panel shows the exact settings for your Google Admin console or Exchange admin centre.
- Create the GINbox mailboxes and bring everyone’s old mail across — from Google in one step, see moving from Google Workspace.
- Publish one SPF record that names both providers (the panel shows it), then send a test to one person on each side.
The exact settings for your admin: Google Workspace split delivery, step by step and Microsoft 365 with another provider.
Questions about split delivery
Can one domain have two email providers?
Yes. With split delivery, one domain’s addresses are divided between two providers: for example a few people on Google Workspace or Microsoft 365 and everyone else on GINbox. Google documents it as split delivery, Microsoft as an internal relay domain. Each address lives on one side only.
What is the difference between split delivery and dual delivery?
Split delivery sends each person’s mail to one system: the people who stay on Google or Microsoft get it there, everyone else gets it in GINbox. Dual delivery sends a copy of the same mail to both systems, which is used during trials or migrations, not to save licences.
Can one domain really use Google Workspace and GINbox at the same time?
Yes. This is called split delivery, and Google and Microsoft both support it. Each address lives in one place: the people you choose stay on Google Workspace or Microsoft 365, everyone else has a GINbox mailbox, and mail between them flows as it does today.
Will senders or customers notice anything?
No. Your domain and every address stay the same. Mail is delivered to whichever side the person is on, and replies, CCs and forwards work as before.
What happens if GINbox is unreachable?
If Google or Microsoft receives your mail first (the way we recommend), the people who stay there never depend on GINbox at all, and mail for GINbox users waits at Google or Microsoft, which tries again until it is delivered. Nothing is lost.
Do calendars and contacts work across both sides?
Meeting invitations by email work between everyone. Shared calendars, free/busy and the company address book are not shared between Google or Microsoft and GINbox.
Can we move the remaining people to GINbox later?
Yes, one person at a time and with their old mail. When the last one has moved, the split is switched off. If GINbox already receives your mail first, no DNS change is needed at all.
How do we start?
Split delivery is new, and our team sets it up with you: write to us with your domain and the people who should stay. We switch it on for your domain and walk you through the few settings at Google or Microsoft.
Pay for the seats you need
Try GINbox free for 14 days with up to 3 mailboxes, then tell us who should stay on Google or Microsoft.