You're using Symantec Mail Security for Domino and need to understand what recommendations exist for the product's handling of disk space reserved for the termporary processing of files and messages.
Symantec Mail Security for Domino uses the temporary space (either configured in the product's settings or default system variable) to decompose files and messages. The amount of disk space used required depends on the average document and mail flow and the average size of each file or message.
Please consider the best practices below to make sure Symantec Mail Security for Domino will be able to use its temporary space properly.
How to calculate the disk space for Symantec Mail Security's temporary processing:
If the SMSDOM settings include the followings:
Locations of ASize and DSize values in the Settings database (sav.nsf) GUI are :
ASize : Configuration -> Scan Error -> Container Limits -> Attachment where the cumulative size of all extracted files exceeds x MBs in size (200MB by default). This setting sets the maximum space for decomposer to use.
DSize: Threat/Security Risk -> Basics -> Maximum memory to use per thread for extracting attachments (Files over this size will be extracted on disk): 20000 Kilobytes (20MB by default).
...Then the temporary folder specified in Symantec Mail Security for Domino settings should have disk space according to the formula:
(ASize * TNum + DSize) = 75% of the disk space
Example: if ASize=100MB and TNum=64 threads and DSize=20MB, the required space would be (100*64+20)/0.75 = 8560MB.
Note: Symantec Mail Security for Domino creates temp files while at the time of scan and they are (in normal circumstances) removed automatically after the scan completes.