Empty Attachment after sending with JAVAMAIL

Question

Hey!
In my stand-alone-application works like a observer and i have the following problem:
I send a zipfile that contains a xsl-document. I also us the AES256 encryption for the Zip-File.
So my apllication send a mail depending on the database-tables.
After getting the mails:
First run
The first one contains the xls-document but the content is not right (some hex codes)
Second run
Zip-file is empty
Third run
Correct
Fourth run
Zip-file is empty.
Further Information:
After Transport.send(msg); i rename the attachment-files in my java-code automatically
Please help me?

Answer 1

Sorry, I'm not understanding what you're doing.
On the mail sending side, does the file exist? Is the file content present in the message
you send?
I'm sure you understand that file names sent by the sender have no meaning to the recipient.
You need to send the file contents. Normally, attaching a file to a message will send the
contents, and will send the name in case the recipient wants to save the file under the same
name.
If you're properly attaching the file to the message, and you're not getting the file contents
included in the message when you send it, you're doing something wrong on the sending
side.
JavaMail comes with demo programs that show how to attach a file. Try to get the
sendfile.java demo program to work for you first. If that doesn't work, provide more
details of what you're doing, including a protocol trace.