OK..
Did you change the settings?
Also have you changed the PORT settings for the email prevent server, by default they are 10026 and 10025 (See the Server Configuration page at the bottom), you should change them both to 25. Then recycle the service.
Since you have SO little memory, you may will have to edit the FileReader.properties file and reduce the setting. Look for the HEAP settings, play with those numbers.
Keep in ind that the VM is VERY UNDER POWERED... it will bairly run. 16GB is not enough to really have the DB and other services run well.
Good Luck
Ronak
PLEASE MARKED SOLVED