I have never used Lazy Approval but will be in the upcoming months. Does Lazy Approval with with external emails? Also can an email be encrypted?
Yes Lazy approval will work with external email addresses even if there is not matching account in the domain or sharepoint profile.
You could also connect an external user with a Nintex Live account to allow them to use Nintex Mobile.
Rency - this doc is also a good resource LazyApproval Guide: Nintex Workflow 2013 & Nintex Workflow 2010
The lazy approval is working for domain users perfectly. For external users or non domain users, not able to get the response in the task.
Avinash - not sure if you solved your problem, I had a similar issue, internal worked but not external. In the end, steps I took to get external lazy approval working were:
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