Hi, We use a PHP email class that handles sending emails in HTML and allows for attachments. There is an error when displaying the emails in like Outlook / iPhone clients etc - It shows the emails as Plain Text and Attachments as Plain Text (you can see this in the attachment of an example in a notepad copied from outlook). However if i look at the emails in web clients such as Google mail or webmail.domain (provided by the VPS - horde/Atmail) it shows the HTML and attachments correctly. Our VPS was recently upgraded from Plesk 10.1 to Plesk 10.4 and since this change the emails not been showing correct. Your job is to find the cause and fix it. I believe what is causing the problems is server side and not PHP as this was working correctly last week. Thanks