e-mails with null content

[Google Code Exporter]

What steps will reproduce the problem?
1. In class MailView, remove the try/catch block (as it was before rev41) 
2. Launch the plug-in and wait

What is the expected output? What do you see instead?
Without the try/catch block an "error output" is generated because there are 
mails which have null attributes (author and date).
Theoretically all e-mails should have those fields!

With try/catch block the error doesn't show up but the missing fields could 
affects the behavior of other classes, for example the ordering of email's list 
which is done by date.

Original issue reported on code.google.com by [e-mail] on 13 Jul 2011 at 1:04

[Google Code Exporter]

Seems to be a problem with the data stored in the database.
Some text which doesn't follows the mbox format!

Original comment by [e-mail] on 14 Jul 2011 at 7:45