Hi,
We are experiencing slowness when accessing webmail. There is no issue observed from the server side, as it appears to be running smoothly. However, from the SmarterMail logs, we found the following errors:
[2025.08.19] 00:04:23.183 [FileFunctions] File is over 15mb, this might cause reduced performance. Size: 16.5mb Filepath: F:\SmarterMail\Domains\se***\Users\ray\folder-80003.json
[2025.08.19] 00:05:28.201 [FileFunctions] File is over 15mb, this might cause reduced performance. Size: 37.2mb Filepath: F:\SmarterMail\Domains\mit***\Users\mm\folder-720003.json
[2025.08.19] 00:05:32.389 [FileFunctions] File is over 15mb, this might cause reduced performance. Size: 25.8mb Filepath: F:\SmarterMail\Domains\mit***\Users\ro\folder-870003.json
[2025.08.19] 00:05:35.826 [FileFunctions] File is over 15mb, this might cause reduced performance. Size: 32.9mb Filepath: F:\SmarterMail\Domains\mit***\Users\to\folder-970003.json
[2025.08.19] 00:05:39.733 [FileFunctions] File is over 15mb, this might cause reduced performance. Size: 33.3mb Filepath: F:\SmarterMail\Domains\mit***\Users\wan\folder-980003.json
[2025.08.19] 00:05:46.592 [FileFunctions] File is over 15mb, this might cause reduced performance. Size: 20.2mb Filepath: F:\SmarterMail\Domains\mit***\Users\yutaka\folder-7830003.json
Could this be the root cause? Previously, we tried renaming the affected .json
files, and performance improved temporarily, but the file sizes eventually exceeded 15MB again.
Do you have any suggestions to resolve this issue permanently? Would upgrading to the latest version help address this problem?
Thank you.