One RPost RMail login for encrypted email and RSign signatures.
How a Pune law firm stopped arguing over ‘we never got that email’ once every message carried a Registered Receipt. Story below.
RPost Encrypted Email & e-Signature at a glance
Why RPost anchors most Indian encrypted email & e-signature estates.
- OEM
- RPost Communications, founded in Los Angeles in 2000. Privately held, grew organically on its own patented platform rather than through acquisitions. Indian operations run through RPost Technologies Private Limited, Hyderabad.
- Platform
- RMail for encrypted, trackable email with legal Registered Receipt proof of what was sent and when it was opened. RSign for e-signatures. RDocs for document rights control. RForms for data collection. All sit inside Outlook or a browser, no separate portal to learn.
- Track record
- Millions of users in 100-plus countries since 2000. The US Government Accountability Office has been a customer since 2002, and RPost is USPS-accredited for its e-delivery proof.
- Proof technology
- 50-plus patents across 23 countries cover the Registered Receipt record, which functions like a certified courier slip for email. Most e-signature rivals do not offer an equivalent legal delivery proof.
- Indicative price
- RSign lists from around USD 7 per user per month internationally. Because RPost has no published India price list, Sirius Star confirms exact per-user pricing and any bundle discount before you sign anything.
- Sirius Star’s role
- We are an authorized reseller and distribution partner, not RPost itself. We size the plan, handle the Outlook rollout, and stay on as your local contact for renewals and support tickets.
- Best fit
- Law firms, finance, insurance and healthcare teams that need to prove an email was delivered and read, plus any business replacing paper signatures with something that holds up if challenged.
The RPost Encrypted Email & e-Signature ranges Sirius Star supplies
Pick the range that matches the use case. We size the mix in the free 30-minute review.
RMail
Encrypted, trackable email with a Registered Receipt for every message. Built for teams who need to prove delivery, not just send mail.
- Registered Receipt records proof of sending, delivery and content, patented in 23 countries
- One-click encryption from inside Outlook, no separate portal for recipients
- RMail Gateway option applies smart encryption automatically at the server, no user action needed
- Sizing and per-user pricing confirmed on the review call, no published India list price
RSign
e-signature and workflow tool, positioned by RPost at roughly half the cost of the bigger incumbents at scale, which is the most repeated reason buyers switch.
- Lists from about USD 7 per user per month internationally on RPost’s own pricing
- Bundles cleanly with RMail so encrypted send and signature proof share one login
- Signing screens are functional rather than polished. We flag this honestly below
RDocs
Document rights management that keeps control of a file after you have sent it, revoke access, set expiry, track opens.
- Fits contracts and sensitive attachments that still need control after the email leaves your inbox
- Works alongside RMail rather than replacing it
- Right add-on once plain encrypted email is not enough for a document
RMail Gateway
Server-side smart encryption for the whole company, applied automatically based on content rules rather than one email at a time.
- Best fit once more than a handful of staff need Registered Receipt on outgoing mail
- Removes the ‘did I remember to encrypt this’ question from every sender’s plate
- We size Gateway against per-seat RMail before you commit to either
RPost Encrypted Email & e-Signature vs DocuSign, Adobe, Dropbox
All four are honest choices. Most Indian buyers land on the first option for service depth and ecosystem fit.
| Brand | Where it wins | Best fit |
|---|---|---|
| RPost (via Sirius Star) | Patented legal delivery proof no mainstream e-sign tool matches, and pricing built to run well below DocuSign at scale. | Law firms, finance and healthcare teams where proving delivery matters as much as the signature. |
| DocuSign | A signing interface recipients already recognise and a much larger brand footprint, useful when the other party is skittish about an unfamiliar vendor. | Sales-heavy teams sending high volumes of signature requests to external parties. |
| Adobe Acrobat Sign | Deeper integration if your documents already live inside the Adobe and Microsoft 365 stack. | Teams standardised on Adobe tools for document creation and review. |
| Dropbox Sign | A simpler, more consumer-friendly signing flow for low-volume, low-complexity use. | Small teams that sign occasionally and do not need delivery-proof or encryption features. |
How a Sirius Star RPost procurement runs
Free 30 minute review first. Then a written quote in 24 working hours.
Use case review
Free, 30 minutes. We map whether you need delivery proof, encryption, e-signature or all three.
Plan sizing
RMail, RSign, RDocs or a bundle, priced per user against your actual send volume, not a generic tier.
Outlook rollout
Plugin deployed across your team, including the initial setup RPost’s own reviewers flag as fiddly if done alone.
Support and renewal
We stay on as your local contact for plugin issues and renewals. Written quote lands in 24 working hours of the review.
Buying RMail and RSign in India, a field guide
The deeper read for compliance heads and office managers sizing encrypted email and e-signature, not just picking a plan.
- RMail vs RSign vs RDocs, which one actually fits your risk
- What a Registered Receipt proves in an Indian court or regulator inquiry
- The Outlook plugin setup checklist that avoids the common install snags
- 5 questions to ask before you sign, from real buyer complaints
RPost Encrypted Email & e-Signature India FAQ
Common questions about this brand for Indian buyers. Hover any underlined term for a plain-English definition.
What is RPost and how is RMail different from normal encrypted email?
RPost is a US company, founded in 2000, that has held patented Registered Email and Registered Receipt technology since its earliest days, now built into the RMail platform. A normal encrypted email tool scrambles the message. RMail adds a Registered Receipt, a patented record proving what was sent, when it was delivered and whether the content was altered in transit, useful evidence in a dispute or compliance review.
Is RSign’s signing screen really outdated compared to DocuSign?
Some users describe the RSign interface as less polished than DocuSign, and we will not pretend otherwise. What you get in exchange is pricing that runs roughly half of scaled incumbent tools, plus the same Registered Receipt proof backing every signature. If your priority is the most familiar-looking signing screen for external recipients, DocuSign wins that specific point. If cost and delivery proof matter more, RSign is the honest pick.
We have not heard of RPost before. Is it a small, risky vendor?
RPost is not a household name in India the way DocuSign is, and that unfamiliarity is a fair concern. It is not a startup risk though: the company has run since 2000, the US Government Accountability Office has been a customer since 2002, and it holds 50-plus patents in 23 countries. Sirius Star sits between you and RPost as your accountable local vendor, so support does not depend on cold-emailing a US head office.
Does the Outlook plugin cause setup problems?
Some reviewers report initial setup friction and occasional clock-sync issues between the plugin and RMail’s time servers. We handle the rollout directly, test the sync before go-live, and are the ones you call if a plugin update breaks something later, not a support ticket queue in another time zone.
What does RMail or RSign cost in India?
RPost has no published India price list. Internationally, RSign starts near USD 7 per user per month. Sirius Star confirms your exact per-user cost, any bundle discount for combining RMail and RSign, and delivers a written quote within 24 working hours of your review call.
Who actually needs Registered Receipt proof, versus just encrypted email?
Law firms, finance, insurance and healthcare teams that face disputes over whether a notice, disclosure or contract term was actually delivered get the most value. If your business sends sensitive information but rarely faces a ‘we never received that’ argument, plain RMail encryption without heavy reliance on the Registered Receipt may be enough, and we will say so on the review call rather than upsell the full stack.
Ready for a written RPost quote?
Tell us whether you need encrypted email, e-signature or both, and your user count. A sized quote lands in 24 working hours.
Pair this on one PO
What buyers typically add to a Sirius Star order. Each link is a live page on the Sirius Star site.
Related reading from the Sirius Star blog
Long-form context from our team. Each link is a live post on siriusstar.in.