TUC is an R&D company involves in the production of glass business such as tinted color panel glasses, glass balls, ground lens, sunglasses, protection screens, copper clad PCB's, and PCB mass lamination services. As the company has considered introducing Linux at the initial stage of constructing network system, therefore HGiga as supplier of Linux system became the natural choice. HGiga's Mail Sherlock provides accounts and administrative functions in network broadband on e-mail server. In addition, Mail Sherlock e-mail tracking management system merges with existing enterprise network system and provides control of e-mails into and out of the company for the system administrators. All daily mails are recorded for future tracking. The simple interface operation of Mail Sherlock could help relieve the learning problem and accelerate management efficiency.

The company mainly provides grinding services for bristle material. KINIK is a professional processing manufacturer in precision grinding process. As the company is in the hi tech industry, most documents are highly classified information that are not allowed to leak to the outside world, all e-mail has to be placed under strict control. Also, the ADSL used internal to the company often results in unstable conditions. After study of broadband usage, major reason is due to the inappropriate usage without restriction in SMTP. Hence, MailSherlock of HGiga was used as a gating system for control of e-mail and for saving enterprise broadband usage. The system also automatically provides electronic report in Chinese to fa ciliate the supervisor in monitoring employee's e-mail sending status. Junk e-mails are effectively reduced and hence productivity increased. In addition, the Chinese interface could strengthen the databank consultation system, allowing information administrator to monitor e-mail easily. System will automatically monitor, save, filter all confidential e-mail, free from intervention by auditing personnel.

Freesport is an international design company for sports products. Due to the large demand for export, all domestic and foreign orders are processed through e-mail. Therefore HGiga's MailSherlock could aim at the "Quotation Information" requirement that the company emphasizes and intercept e-mail information that is not appropriate to propagate. All such e-mails are placed in the isolation area for further verification before system automatically releases or redirects these e-mail. E-mail filtering requirement could also be changed based on user's need.
The company originally did not install e-mail server but rely on the e-mail space provided by foreign virtual host computer. However, due to the increase in business activities and the proliferation of junk mail, thee-mail space became insufficient. Adding the fact that the company gradually realizes the importance of backing up e-mail data, there is a need for a dedicated e-mail server and email-monitoring tool. HGiga installed a set of Linux e-mail server by using MailSherlock. The system not only could monitor the e-mails on the original virtual host but also could achieve remote backup through Mail Sherlock. In addition, HGiga also installed the DOM reply system to eServer4 Linux e-mail server patented by HGiga. The installation provided fast countermeasure that could reduce system downtime to within 30 minutes. Also, through the assistance of DOM, only one key is needed to complete system feedback, saving complicated installation settings.

The company is the leader in exhibition design for domestic and foreign furniture companies in high-class office and home furniture. As the company's core is in creative design, security of design concept related information is very important. Since long ago, in order to keep the design information confidential, the company did not open dedicated accounts to employees and did not install e-mail server. However, in view of the increase of junk mail and increase in volume of business, the leased mailbox often exceeded the limit and result in important mail from customers are not received and even encounter crisis of urgent e-mail could not be sent out. HGiga introduced Mail Sherlock and Linux server. All employees are assigned with individual accounts. The size of a single e-mail and the space of individual e-mail are also restricted in order to effectively control the e-mail storage space. All e-mails are filtered for receiver, subject, attached file, date, and source IP with automatic processing by the system (automatic reply, duplicated copy for secured messages, returned messages, and discarded messages). There are even prior prevention, filtering approval, and saving afterwards three layers of protection in order to effectively prevent the leakage of confidential information. Also, with the installation of eServer4 network packet, all e-mail viruses are filtered and removed immediately in order to prevent secondary contamination.