Your domain changes. Your mailbox doesn't.
RBI is moving India's financial sector onto dedicated domains — .bank.in for banks, .fin.in for NBFCs and other financial institutions. Changing the domain is the easy half. Moving every mailbox without losing a single message is the hard half. That's the half we do.
A domain mandate is really an email project
RBI's directive moves regulated entities to dedicated financial-sector domains to cut phishing and impersonation. Your website can move in an afternoon. Your email is where the risk, the cost and the disruption live.
Every address changes
Each mailbox gets a new identity on the new domain. Multiply that by every employee, every shared inbox, every automated alert and every system that sends mail.
The outside world doesn't know
Customers, lenders, auditors, vendors and regulators all hold your old address. Mail sent there has to keep arriving, or it is business lost silently.
History has to come with you
Years of correspondence — much of it evidence in a dispute or an inspection — must arrive intact, searchable and with its structure preserved.
Trust has to be rebuilt
A brand-new domain has no sending reputation. Without SPF, DKIM, DMARC and DNSSEC configured correctly from day one, your mail lands in spam — or gets spoofed.
Your website moved. Your email didn't.
It is the most common position in the sector right now: the domain is registered, the website resolves, the compliance box looks ticked — and mail is still flowing on the old domain, because moving it was too risky to attempt without a plan.
Registered, not migrated
Holding the new domain is not the same as operating on it. Until your people send and receive from it, the anti-phishing benefit the mandate exists to deliver simply isn't there.
Deferred, not solved
Email got postponed because a bad cutover means lost customer mail. That instinct is right — the answer is a migration method where a cutover moment never happens at all.
Quietly widening
Every month on the old domain is another month of phishing exposure against a name your customers no longer have a reliable way to verify.
Parallel Domain Delivery
One mailbox. Both addresses. No cutover moment, and therefore no window in which mail can be lost. The old domain keeps delivering into exactly the same inbox for as long as you need it to — anywhere from one month to twelve, your choice — and then retires on your schedule. Not abruptly, and not indefinitely.
| What you're worried about | A conventional cutover | Parallel Domain Delivery |
|---|---|---|
| Losing mail in transit | A switchover window where mail can bounce or vanish | Both domains live at once — no window, no loss |
| Downtime | Planned outage, usually a weekend | Zero downtime — users keep working throughout |
| Contacts using the old address | Bounces, or a forwarder that breaks replies | Delivered to the same mailbox, replies work normally |
| How long you get to transition | A date fixed by the vendor's cutover plan | 1 to 12 months — you choose, then a managed sunset |
| Password resets at scale | New credentials for every user | No password change — same credentials |
| Retraining staff | New interface, new habits, helpdesk spike | No learning curve — same interface, same workflow |
| Reconfiguring devices | Every desktop, laptop and phone touched | No new configuration on the client side |
| Mail history | Partial or lossy export/import | Folder structure and history preserved |
| Deliverability on a new domain | An afterthought — mail lands in spam | SPF, DKIM, DMARC and DNSSEC configured up front |
IDRBT is the sole authorised registrar for .bank.in and .fin.in domains. IDRBT issues your domain — XgenPlus does everything after that.
100,000+ mailboxes migrated. Zero mail lost.
Three banks already migrated onto their RBI-mandated .bank.in domains, plus five NBFCs — at national scale, on Indian infrastructure. Migration at this size under this mandate is not a capability we are describing. It is work already delivered.
Sovereign by default
Data stays in India, under Indian jurisdiction. On-premise, sovereign cloud, private cloud or hybrid — deployed the way your risk policy requires, not the way a global vendor prefers.
Security built in, not bolted on
PKI, S/MIME, DLP and protocol-level anti-spam ship as part of the platform. Data Xgen Technologies Pvt. Ltd. was recognised for “Excellent Encryption Solutions in India” at the National Cyber Security Summit & Awards 2019.
Built for Indian regulation
Audit trails, retention and access evidence designed around what RBI inspections and IS audits actually ask for. See our RBI-aligned BFSI email security detail.
The questions every institution asks first
Will mail sent to our old address still reach us?
Will we lose any email during the migration?
How much downtime should we plan for?
Do our users need new passwords?
Will staff need training on a new system?
Does every desktop and mobile device need reconfiguring?
What happens to years of existing mail?
How long can we run both domains?
Can XgenPlus register our .fin.in or .bank.in domain?
Our mail is on Google Workspace or Microsoft 365 — can you migrate that?
Will our mail land in spam on a brand-new domain?
We are an NBFC and .fin.in is not open to us yet. What should we do now?
Plan your migration before you need it
Tell us your institution type and roughly how many mailboxes you run. We will walk you through what the move looks like for you — what changes, what doesn't, and how long it takes.
