We’re not just securing email and e-signing.

We’re helping Castlemilk Credit Union in their mission to provide financial resources to their members, always in safest and securest ways.

And we’ve been doing it with them since 2020.

RMail. For Finance. Bank and Credit Union.

  • Industry


  • Sector

Credit Union

  • Geography

Scotland, United Kingdom

  • Platform


Primary Use

RMail with Microsoft Outlook makes it easy to automate email encryption for privacy compliance, Registered Email™ certified email proof of delivery provides risk mitigation, and RMail e-signatures to complete and e-sign loan documents faster.

Watch Elizabeth Campbell’s full panel session at Optimize! FinTech (click here)

opening quote

We use RSign and RMail for statements and any information we need to send to members that is data sensitive…They have been extremely transformative for us.

closing quote
Castlemilk Credit Union

Elizabeth Campbell

Manager, Castlemilk Credit Union

Main Benefit

Castlemilk Credit Union has ensures client communications are conducted with email encryption for security and privacy, from credit union staff to member, with encrypted replies and e-signatures for member submissions related to member loans and other financial services.

Castlemilk Credit Union reports the main benefits of RMail services as:

1. Legal and Auditable Proof. Assurance, confidence, and peace of mind. RSign® makes it easy to view and rely on the Signature Certificate for e-sign tracking, a forensic audit trail, and sent and signed content and timestamp information. A robust record of who signed what when provides confidence that the e-sign process and record will stand up to scrutiny if ever challenged in the future. Legal Proof®.

2. Assurance of privacy compliance with email encryption simple enough that people enjoy using it. RMail® email encryption is so easy, especially for the recipient, that it encourages use and thereby reduces risk of data breaches or privacy enforcement actions. Not all encryption services are the same; others are too burdensome and, as a result, are little used and therefore increase risk (from non-use or circumvention of use). With today’s more sophisticated privacy regulations (e.g. HIPAA, GDPR) and hacker tactics, encryption is essential. RMail makes it easy, enjoyable, automated.

3. Peace of mind, end-user visibility of successful delivery for important messages, with proof. RMail® Registered Email™ services makes delivery and open tracking visible to the sender, providing assurance and peace of mind that important email was successfully delivered. This is returned in the self-authenticating Registered Receipt™ e-record, making it easy to resolve disputes – as easy as forwarding this receipt to any questioning party. The receipt is a self-contained forensic record, eliminating the need to scour server logs to try to investigate and present delivery evidence.

4. E-Sign Simple Enough that People Actually Enjoy Using. RMail e-sign makes e-signatures so simple for all staff, that it encourages use. More use means more cost savings, administrative time savings, and faster business. RSign includes all the enterprise-grade features and training you will ever need.

5. Cost savings with less paper, mail, postage, and administrative time. RMail® Registered Email™ and RSign® e-signature services replace printing, postage (first class, receipt, and certified mail), scanning, faxing, administrative work and other hard costs. Businesses can send required notices with proof of content delivered and timestamped. Users can easily send agreements for recipient electronic signoff or easily e-sign documents that they receive, thus saving wasted time, cost, and other drains on your business.


Castlemilk Credit Union uses RMail to support clients communications. Castlemilk Credit Union automates email encryption and electronic signatures using the RMail interface running within Microsoft Outlook. This makes it easy and automated for staff to send encrypted email for privacy compliance and e-security, plus returns proof of privacy and e-delivery compliance. RMail e-signatures automatically convert Microsoft Outlook attachments into messages, documents, and forms that a message recipient can automatically e-sign. For each message sent, a Registered Receipt email record is automatically returned providing proof of e-delivery, GDPR privacy, or legal e-sign compliance.

Castlemilk Credit Union was established in 1990 to serve the financial needs of people resident in the G45 area (South-East Glasgow). At the time, poverty levels were very high; housing was in need of refurbishment and the people of the area suffered from lack of access to community resources. Confidence, self-esteem and aspirations for future development were low in the community. The Home Credit Industry provided the sole access to financial services for many families at very high rates of interest, which compounded the existing poverty levels.

Tradenames are owned by the named company. Service benefit is summary, not intended to be a case study.​ RPost technology is patented. RMail, RSign, and RPost are trademarks owned by RPost.​