Command line email license never expires. With purchased Upgrade Assurance you can upgrade to a newer major version without extra cost.
To ensure maximum backward compatibility and for user convenience previous versions of the software are available for download.
In case you have uninstalled Command line email by accident, or want to download the latest or previous versions again…
Free trial v6.0 · May, 2017 · Release notes
Free trial v5.2 · Apr, 2014
Free trial v4.1 · Apr, 2012
If you have any questions, please do not hesitate to contact our support team.
I've been wanting this functionality for years and you've implemented it perfectly. Nice job!—Robert M.