Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms.... getUniqueId ()); MailMessage msg1 = client . endFetchMessage...endFetchMessage ( res1 ); MailMessage msg2 = client . endFetchMessage...