RPost in India: encrypted email, proof of delivery, and e-signatures in one place.
RPost India · Encrypted Email · Registered Email · RSign e-Sign
RPost in India: encrypted email, proof of delivery, and e-signatures in one place.
RMail encrypted email, Registered Email proof, and RSign electronic signatures, licensed and set up from Vashi, Navi Mumbai. One click encrypts a message and records what you sent and when. Quoted in 8 hours.
· India’s IT & business services market reached USD 254 billion in FY24 and is projected to cross USD 350 billion by 2026, per India Brand Equity Foundation.
· Under the DPDP Act 2023, Indian businesses must keep personal data in India unless cross-border transfer is to a notified country — Sirius Star configures every deployment for DPDP compliance by default.
· Sirius Star is a Microsoft Partner with a cloud engineer on payroll, founded 2009 in Navi Mumbai, serving 200+ Indian enterprises across Cloud, Secure Data Guard, Device Lifecycle Management, Hardware, and Corporate Tech Gifting.
RMail encrypted email, Registered Email proof, and RSign electronic signatures, licensed and set up from Vashi, Navi Mumbai. One click encrypts a message and records what you sent and when. Quoted in 8 hours.
8-hour quote SLA · 200+ Indian businesses · Support on IST hours · care@siriusstar.in
What one click does to an ordinary email
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One click encrypts the message and creates a record you can show later. A normal email leaves your Sent folder as your only evidence, and a Sent folder proves nothing in a dispute. RMail wraps the same message in encryption and returns a Registered Receipt: the content, the time, and proof of delivery. That is the gap between hoping an email landed and proving it.
The RPost products we deploy
RPost is three jobs in one suite. RMail secures and proves your email, RSign signs your documents, and the security layer screens inbound mail for impostors. Here is the RPost range, mapped to the job it does for an Indian buyer.
RMail Encrypted Email
One click encrypts a message and its attachments. The recipient opens it without creating an account or installing anything. The core of the suite.
Registered Email Proof
Every send can return a Registered Receipt that records the content, the time, and the delivery. When you must prove a notice or a contract was sent, this is the evidence. The differentiator.
RSign Electronic Signatures
Send a document for signature, build reusable templates, and sign in person or by link. A lower-cost e-signature for contracts, offers, and vendor forms.
RMail Security Screening
The suite flags look-alike sender names and impostor mail before a finance clerk acts on a fake invoice. It cuts the email fraud that costs Indian firms real money.
Large File and Document Control
Send large files securely past the mailbox size limit, and set documents to expire so an old attachment cannot be opened a year later.
Plug-in, Gateway and Licensing
It runs as an Outlook and Microsoft 365 plug-in, a web app, or a gateway. We size RMail and RSign seats and confirm every figure in INR.
Who managed secure email and e-signature fits best in India
BFSI sending statements and notices
HR sending offer letters and contracts
Firms emailing sensitive attachments
Teams that need a signature, fast
Anyone served by their own Sent folder today
This suite earns its place the moment an email has to be private, provable, or signed. A finance team mails statements that cannot leak. An HR lead needs a signed offer back today. A compliance officer issues a notice and must later show it was delivered. Where the inbound threat side runs deeper, we add Proofpoint email security. Signature work that needs an Indian certifying authority goes to eMudhra. We fold the rollout into your DPDP compliance package. Browse the Cloud and M365 catalogue for the rest of the stack.
When you must prove you sent it, the Sent folder is not enough.
A breach notice, a consent record, a contract delivery: each one can become a line you must defend. Under the DPDP Act the breach penalty ceiling is INR 250 Crore, and the CERT-In directions expect a covered incident reported within six hours. Your RBI auditor wants proof, not a screenshot. A Registered Email records exactly what left your office and when.
Get the proof-of-delivery review for your team
200+ Indian businesses · Response within 8 hours
Secure email and e-sign pick: RMail and RSign vs DocuSign vs eMudhra
Three honest ways to send a provable email or get a document signed. The pick is driven by Indian residency, budget, and whether the job is mostly email or mostly signatures, not by the brand.
If the job is mostly email that must be private and provable, RMail leads. If you sign hundreds of documents a week, DocuSign earns its premium. If the signature must carry the weight of an Indian certifying authority and stay India-hosted, eMudhra is the honest answer, and we sell that too.
Where your messages and signature records live
RMail and RSign run as a vendor cloud service. The message body is encrypted, so the content is protected in transit and at the recipient. The signature audit trail exports as a PDF record you keep. If you need the signing engine India-hosted under an Indian certifying authority, an overseas cloud is the wrong fit, and we say so. In that case we deploy eMudhra for the signatures and keep RMail for the encrypted-email layer. We pair the rollout with data egress controls and Okta single sign-on. A data protection officer service takes the compliance load when it needs an owner. Inbound threat screening sits with your endpoint layer and Bitdefender. Rolling out new laptops too? Ask about Device-as-a-Service when you buy 50+ devices.
Who is RPost India a good fit for in India?
RPost India works best for Indian businesses that already have established workflows around the related platforms, need DPDP-compliant data residency, and want a single accountable partner for deployment plus quarterly tuning. Sirius Star runs the entire lifecycle — scoping, deployment, training, and renewal — from a Navi Mumbai engineering team.
How long does RPost India deployment take?
A typical RPost India rollout in India takes 2-6 weeks from purchase order to production cutover, depending on scope. Sirius Star follows a phased plan: scoping call within 8 working hours of enquiry, design review within 5 days, deployment waves, then a 30-day stabilisation window before handing over to your team or our managed retainer.
Secure email and e-signature FAQ for Indian buyers
How is RPost priced in India in 2026?
RMail and RSign are priced per user, per month, and you can take one or both. Volume and the feature set you need move the figure. We size the seats to your headcount and confirm every figure in INR at quote time, exclusive of GST.
What is Registered Email, and does it hold up as evidence in India?
A Registered Email returns a receipt that records the content, the time, and the delivery of your message. Electronic records are recognised under the IT Act, and a timestamped receipt is far stronger than a Sent folder. The weight it carries in any specific dispute is for a court to decide, so we set it up as solid evidence, not as a legal guarantee.
Does RPost keep my email and signature data inside India?
It runs as a vendor cloud with message-level encryption, and we confirm the region at quote time. For a buyer who needs the signing engine India-hosted under an Indian certifying authority, we deploy eMudhra for the signatures and keep RMail for the encrypted-email layer. We do not pretend an overseas cloud is the same as India residency.
How is RSign different from DocuSign or eMudhra?
RSign is a lower-cost electronic signature bundled with encrypted, provable email, which suits firms that want both on one bill. DocuSign is the polished, widely recognised choice for high-volume signing across departments. eMudhra is the Indian certifying authority for DSC and Aadhaar e-sign when the signature must carry that weight. We fit the one that matches your job.
Do you handle the rollout, or just sell licences?
We handle the rollout. We install the Outlook and Microsoft 365 plug-in, set up the gateway and templates, train staff, and stay on call. You get the licences and the people who make them work, on IST hours from Vashi.
P.S. from Karthik Iyer, Cloud Practice, Sirius Star. The cheapest win on this page is the secure email review. We have seen a finance team mail bank statements as plain attachments and an HR lead chase signatures over WhatsApp. Both were one screenshot away from a problem. Provable, encrypted email with a quick signature usually pays for itself the first time someone asks you to prove what you sent.
Prove every email. Sign every document. Keep the record.
Free 24-hour secure email review. We map what you send today, where the proof gaps are, and size the right RMail and RSign plan. You get a written report with the editions, the per-user split, the annual TCO, and an honest call on best fit.
200+ Indian businesses · 8-hour quote SLA · 17 years in IT