“Rejection due to Scan Limitations” means that the mail was rejected by one of the following scanning exception rules
-Office 2007/2010 file contains more than 353 files.
-Compressed archive contains more than 353 files.
-Office 2007/2010 file contains a file with decompression ratio of more than 100.
-Compressed file contains a file with decompression ratio of more than 100.
If these file types are detected in any mail, the mail is rejected at the periphery. The system assumes these are risky and that these may contain viruses and its not worth doing any further analysis on these and also not safe to release to … Read the rest