Let's Encrypt™ certificate renewals for Notes/Domino

Single domain name license is now FREE for organizations with 10 or fewer employees! *

LEND is software that automates the installation and renewal of Let's Encrypt™ SSL/TLS certificates for your Domino environment. Obtaining valid SSL/TLS certificates from Let's Encrypt is now becoming a common option for websites. However, installing and maintaining up-to-date Let's Encrypt certificates on a Domino server can be a challenge. Let LEND take care of managing the process for you and keep your data secure as it travels over Domino-supported HTTP, SMTP, POP3 and IMAP protocols.

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Securing internet communications

Whether you're using Domino as an email solution or hosting business-critical web and mobile applications, keeping your data secure as it passes over the internet is imperative. LEND helps you achieve this by simplifying the process of installing and maintaining SSL/TLS certificates on your Domino servers.

How LEND Works

LEND is a Notes application (.nsf) that communicates directly with Let's Encrypt servers to create, renew and store SSL/TLS certificates in conjunction with Domino's native SSL keystore. Developed in Java, LEND is a standalone solution and does not require Certbot, Python or any other dependencies to be installed into your Domino environment. Simply define the servers and sites where certificates need to be deployed and let LEND's scheduled agent take care of the rest.


-- With the multi-domain license, get automatic LE certificate renewals for as many Domino servers and sites as you need. All renewal information is stored in a single .nsf that can be replicated among servers.
-- Configurable stopping and restarting of Domino services on a per-server basis.
-- Optionally notify administrators on warning or failures.
-- Fully-automated support for clustered servers and wildcard environments is planned for an upcoming version.

Pricing and Licensing

Single domain name license is now FREE for organizations with 10 or fewer employees! *

Single domain name license: $29
Multi-domain name license: $69

A single license is required for one production domain name. For two or more production domain names, the multi-domain name license is required. Either license entitles you to use the product on any number of testing and staging servers within your organization. Purchasing a license comes with email support for up to one year from the date of purchase and includes any fixes/patches of the same release for up to one year.

* Please email your request to support at rhpconsult dot com.

Server Requirements and Prerequisites

The recommended minimum version of Domino is version 9.0.1 Fix Pack 3. Let's Encrypt certificates use the SHA-2 algorithm which was delivered in Domino 9.0.1 Fix Pack 3. For additional information, please see http://www-01.ibm.com/support/docview.wss?uid=swg21418982 and https://letsencrypt.org/docs/certificate-compatibility.
For each server on which a Let's Encrypt certificate is to be installed, the IBM Kyrtool must also be installed in the Domino server program directory. The IBM Kyrtool may be downloaded from IBM Fix Central here: https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7ELotus&product=ibm/Lotus/Lotus+Domino&release=

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