File Rules File Rules allow you to create rules containing either block or allow actions for file extensions, file types or file expressions. File rules are assigned to Spam/Virus/File Policies which in turn are assigned to Internal Recipients. Hermes SEG file rules are processed from the top down fashion . In other words, as a file rule gets processed, block/allow actions on the to of the rule get processed first. If a match is found then the action is taken and all further processing of the rule stops. Default System File Rule Hermes SEG already comes pre-configured with a  Default  System   File Rule which is assigned to all the system Spam/Virus/File Policies. The Default System File Rule cannot be edited, it can only be viewed or copied in order to be used as a starting point in creating custom file rules ( Figure 1 ). Figure 1 View Default File Rule Note: You cannot make any changes to the Default file rule . Under the  System File Rules section click on the icon under the Actions  column of the  Default  file rule. On the  View File Rule  page, you will see a listing of file types and corresponding actions for those file types ( Figure 2 ). Figure 2 Click on the  Back to File Rules  button on the bottom of the page to return to the File Rules page ( Figure 3 ). Figure 3 Create Custom File Rule by copying Default File Rule or any Custom File Rule This method will allow you to copy the  Default  File Rule or any  Custom File Rule  (assuming there are existing custom file rules) and using it as a starting point for a new custom file rule. Under the  System File Rules  section or the  Custom File Rules (if there are already existing custom file rules) section, click on the icon under the Actions  column of the file rule you wish to copy. You will be redirected to the  Copy File Rule  page in order to create and customize a new file rule based on the file rule you choose ( Figure 4 ). Figure 4 Add File Types On the  Copy File Rule  page, under the  File Type  drop-down field, select a file type. Note that the  File Type  drop-down is organized in sections of HIGH-RISK FILE EXTENSIONS, HIGH RISK FILE TYPES, HIGH RISK MIME TYPES, FILE EXTENSIONS, FILE TYPES, MIME TYPES, OTHER TYPES and CUSTOM-EXPRESSIONS ( Figure 5 ). Figure 5 Under the  Action  field, select either a  Ban  or  Allow  action and then click on the  Add  button ( Figure 6 ). Figure 6 As you add File Types and their associated actions, they show up on the bottom of the  File Types and Actions  to be added section ( Figure 7 ). Figure 7 Continue adding File Types as needed. Re-order File Types Under the  File Types and Actions to be added  section, adjust the order the File Types that appear in the file rule by selecting each file type at a time the clicking on the  Move Up  or  Move Down  buttons as necessary to adjust the order ( Figure 8 ). Figure 8 Delete File Types Under the  File Types and Actions to be added  section, delete file types by selecting each file type at a time the clicking on delete button ( Figure 8 ). Create File Rule Name Under the  Enter a name for this File Rule  field, enter a unique name for this rule and click the  Add Rule  button below ( Figure 9 ). You will be redirected back to the  File Rules  page. Figure 9 Back at the  File Rules  page, the new rule will appear under the  Custom File Rules  section ( Figure 10 ). Figure 10   Create Custom File Rule This method will allow you to create a new blank Custom File Rule. Under the  Custom File Rules  section, click on Create Custom File Rule button ( Figure 11 ). Figure 11 You will be redirected to the  Create File Rule  page in order to create and customize a new file rule ( Figure 12 ). Figure 12 Add File Types On the  Create File Rule  page, under the  File Type  drop-down field, select a file type. Note that the  File Type  drop-down is organized in sections of HIGH-RISK FILE EXTENSIONS, HIGH RISK FILE TYPES, HIGH RISK MIME TYPES, FILE EXTENSIONS, FILE TYPES, MIME TYPES, OTHER TYPES and CUSTOM-EXPRESSIONS ( Figure 13 ). Figure 13 Under the  Action  field, select either a  Ban  or  Allow  action and then click on the  Add  button ( Figure 14 ). Figure 14 As you add File Types and their associated actions, they show up on the bottom of the  File Types and Actions  to be added section ( Figure 15 ). Figure 15 Continue adding File Types as needed. Re-order File Types Under the  File Types and Actions to be added  section, adjust the order the File Types that appear in the file rule by selecting each file type at a time the clicking on the  Move Up  or  Move Down  buttons as necessary to adjust the order ( Figure 16 ). Figure 16 Delete File Types Under the  File Types and Actions to be added  section, delete file types by selecting each file type at a time the clicking on delete button ( Figure 16 ). Create File Rule Name Under the  Enter a name for this File Rule  field, enter a unique name for this rule and click the  Add Rule  button below ( Figure 17 ). You will be redirected back to the  File Rules  page. Figure 17 Back at the  File Rules  page, the new rule will appear under the  Custom File Rules  section ( Figure 18 ). Figure 18 Edit Custom File Rule Note: ONLY Custom File Rules can be edited. Under the  Custom File Rules section, click on the icon of the Custom File Rule you wish to edit. You will be redirected to the  Edit File Rule  page in order to customize the file rule ( Figure 19 ). Figure 19 Add File Types On the  Edit File Rule  page, under the  File Type  drop-down field, select a file type. Note that the  File Type  drop-down is organized in sections of HIGH-RISK FILE EXTENSIONS, HIGH RISK FILE TYPES, HIGH RISK MIME TYPES, FILE EXTENSIONS, FILE TYPES, MIME TYPES, OTHER TYPES and CUSTOM-EXPRESSIONS ( Figure 20 ). Figure 20 Under the  Action  field, select either a  Ban  or  Allow  action and then click on the  Add  button ( Figure 21 ). Figure 21 As you add File Types and their associated actions, they show up on the bottom of the  File Types and Actions  to be added section ( Figure 22 ). Figure 22 Continue adding File Types as needed. Re-order File Types Under the  File Types and Actions to be added  section, adjust the order the File Types that appear in the file rule by selecting each file type at a time the clicking on the  Move Up  or  Move Down  buttons as necessary to adjust the order ( Figure 23 ). Figure 23 Delete File Types Under the  File Types and Actions to be added  section, delete file types by selecting each file type at a time the clicking on delete button ( Figure 23 ). Edit File Rule Name Under the  Name of the File Rule  field, enter a unique name for this rule and click the  Save Rule  button below ( Figure 24 ). You will be redirected back to the  File Rules  page. Figure 24 Back at the  File Rules  page, the new rule will appear under the  Custom File Rules  section ( Figure 25 ). Figure 25 Delete Custom File Rule Note: ONLY Custom File Rules that are NOT associated with with a File/Virus/Spam Policy can be deleted. When deleting a Custom File Rule, the system will NOT prompt you to confirm, it will be deleted immediately. Under the  Custom File Rules section, click on the icon of the Custom File Rule you wish to delete. The system will delete the Custom File Rule and re-direct you back to the File Rules page ( Figure 26 ) Figure 26