> You're attachments did not get through (Apache mail servers strips > them). Instead, please open a JIRA issue for this problem and attach > them there. I will then attempt to reproduce.
...thanks for your feedback (sorry but I was not aware of that). I just created JIRA issue FTPSERVER-241 "Socket file descriptors leak leading to 'Too Many Files Open' using FTP/S" with attachments & co.: https://issues.apache.org/jira/browse/FTPSERVER-241 TIA for your help! Cheers, F.