[eluser]markup2go[/eluser]
Check your CI logs and FTP logs to see what's going on. Enable error reporting using ini_set() or in your php.ini might help as well.
I myself have cause a virus before that stole all the saved ftp accounts on my PC and routinely injected XSS malware in various files. I'm pretty sure you probably are seeing the white space due to syntax errors from a similar cause.
I should also note that I recently purchased a cloud server from Rackspace, and they neglected to tell me that the IP was blacklisted for spam. This could cause emails to be blocked on the receiving end.
Let me know what happens this is interesting
I should also add that if you did suffer the FTP intrusion that you should reset all your passwords and clean the infected PC.
Thanks,
Jason
