[JAMES-1543] Mailcontent is interpreted as a command for mails exceeding system maximum message size

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0-beta4
• Component/s: SMTPServer
• Environment: Redhat Linux
• Assignee: Unassigned
• Reporter: Markus Moldaschl
• Created: 24/Mar/14 14:46
• Updated: 19/Apr/17 06:10
• Resolved: 19/Apr/17 06:10

Description

Sending an email that exceeds the system maximum message size, the email will be denied but the base64 encoded string for the attachments will be interpreted as command partly. This leads to thousands of

INFO  2014-03-24 14:13:44,521 | pool-16-thread-20              | smtpserver                    | ID=731651524 org.apache.james.protocols.smtp.core.UnknownCmdHandler: 500 [5.5.1 Command XGEYMGC+QZDG4EDE9WKJDGPZZ6VCZKIFTYCUWLYPQJNZ9YS7OFTHYNOTV8YFK/QFHBVTY7DO45QJ unrecognized.]

messages in the log files james-server.log smtpserver.log. During the time James writes this messages to the log files, it does not accept any other email thus causing email delays.

We found this issue with James 3.0-beta3. As I did not find any similar issue, I assume that it is still there with beta4.