When uploading a file to KUMail storage, the virus check function operates.
If the message "(file name) : (file name) was not uploaded because of being strongly suspected of the virus." is displayed, the file may be infected with a virus.

Please check your PC's anti-virus software to make sure that there is no problem with the file.

When false positives occur

If you continue to receive false positives after trying several times, please consider another method.