Hi Mike, it’s a combination of things. The legacy Desktop solution has not been developed on since early 2018 (and honestly, I’m fairly sure that development was done in 2017 and released in 2018). In addition to that, the team at that time decided to deprecate the legacy Desktop officially (also in 2018):

Last year, members pointed out about the issues with the basic authentication that legacy Desktop uses:

Which resulted in this announcement:

https://community.spiceworks.com/blogs/products/3272-spiceworks-help-desk-products-timeline-on-email-service-compatibility-changes

And here are the references from the first post:

These updates will end up making the legacy Desktop unusable for many users as they use Microsoft and Google authentication. Knowing these were coming closer and closer (the original dates were pushed back but it could be early next year), we felt it was our responsibility to ensure that users were aware of this. Add to that, there has been no development on legacy Desktop in over 3 years (and, to be clear, the team at that time deprecated it because they felt they had to do a complete rewrite, hence first attempting 8.0 and then abandoning that and moving towards the common codebase approach), we wanted to point this out so that users were not finding out about this the hard way (aka, when either Microsoft or Google fully remove basic authentication).

Does that help some?

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