I always stick up for 1and1 here, but they really annoyed me today - got an email from them about a file sending out large amounts of email on our hosting account. So, I called them and asked if they could give me some more information on where the issue began - like what site or what file or what email address etc. Even after pushing them all they could tell me was that it was a file called sendmail.php! Bearing in mind we have like 200 sites and over 200,000 files in our hosting package, that doesn't really narrow it down. Thanks 1and1!