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Instead of using the same filename with each build you create such as SmarterMail_Setup.exe or what it is, please insert the product version variable so that your output is SmarterMail_Setup_15.1.6095.exe OR make public a list of prior versions so we can roll back should we need to troubleshoot.
I could really use the version prior to 6095 right now! I can't even get Outlook for Mac (latest) to work with Exchange/365 in macOS Sierra among other issues (high memory, etc.). I can't use EWS on Mac Mail so went back to IMAP, CalDav, and CardDav.
I guess we continue the sage of EWS not baked right somewhere on someone's end. But I digress, we need access to prior builds, figure out a way please.