Since 1995, MK Net.Work invents, develops, edits and supports innovative and robust software solutions for Microsoft and IBM/HCL email & collaboration platforms, and web browsers. Known for our ZipMail and Z-OptimiZr (www.smallerfaster.com) optimization product lines, we have been developing and marketing Attach2Cloud since 2018. Attach2Cloud, which is intended for Microsoft 365 customers, revolutionizes Microsoft Outlook usage by literally merging Outlook with OneDrive, and, since its new version 5, with SharePoint Online and Teams. Attach2Cloud is a real game changer regarding the adoption of modern collaboration practices centered on the Microsoft 365 cloud.