The maximum number of the attached files is 20. Please compress and send as a zip file to send files more than 20. If you compress file(s) using Mac, please compress the file using zip command via Terminal, instead compress command via Finder
e.g. zip archive_name data1.txt data2.txt
Files with extension *.exe *.sh *.ace or those without extensions are blocked even inside zip archive. Please change extension to ".txt".
If you cannot attach a zip file made by this procedure, please attach files separately.
Maximum file size limit is 15MB.