Technical References
3-194
CLI Reference Guide for AsyncOS 9.7 for Cisco Email Security Appliances
Chapter 3 The Commands: Reference Examples
 Policy Enforcement
Batch Command: This command does not support a batch format
Example
In this example, the filter command is used to create three new filters:
• The first filter is named big_messages. It uses the body-size rule to drop messages larger than 10 
megabytes. 
• The second filter is named no_mp3s. It uses the attachment-filename rule to drop messages that 
contain attachments with the filename extension of 
.mp3. 
• The third filter is named mailfrompm. It uses mail-from rule examines all mail from 
postmaster@example.com and blind-carbon copies administrator@example.com. 
Using the 
filter -> list subcommand, the filters are listed to confirm that they are active and valid, 
and then the first and last filters are switched in position using the 
move subcommand. Finally, the 
changes are committed so that the filters take effect.
mail3.example.com> filters
Choose the operation you want to perform:
- NEW - Create a new filter.
- IMPORT - Import a filter script from a file.
[]> new
Enter filter script. Enter '.' on its own line to end.
big_messages:
 if (body-size >= 10M) {
 drop();
 }
.
1 filters added.
Choose the operation you want to perform:
- NEW - Create a new filter.
- DELETE - Remove a filter.
- IMPORT - Import a filter script from a file.
- EXPORT - Export filters to a file
- MOVE - Move a filter to a different position.
- SET - Set a filter attribute.
- LIST - List the filters.
- DETAIL - Get detailed information on the filters.
- LOGCONFIG - Configure log subscriptions used by filters.
- ROLLOVERNOW - Roll over a filter log file.
[]> new
Enter filter script. Enter '.' on its own line to end.
no_mp3s:
 if (attachment-filename == '\\.mp3$') {
 drop();
 }
.
1 filters added.
Choose the operation you want to perform:
- NEW - Create a new filter.
- DELETE - Remove a filter.
- IMPORT - Import a filter script from a file.
- EXPORT - Export filters to a file
- MOVE - Move a filter to a different position.
- SET - Set a filter attribute.
- LIST - List the filters.
- DETAIL - Get detailed information on the filters.










