Thanks a lot for the response. We have installed MapiCDO in our server. We tried to execute the below command to convert eml file to msg file,
C:\MrMapi>mrmapi.exe -Ma -i C:\MrMapi\MrMapi64Bit\212.eml -o C:\MrMapi\MrMapi64Bit\212.msg -Cc CCSF_SMTP
But, we got the error as "MAPI <-> MIME converter not found. Perhaps Outlook is not installed." . Do we have any other way to make it work without installing outlook ? . Please let us know.