Outlook can sometimes reformat attachments to 'houdini-connections.co.uk'. This is most often when the email client is sending out emails that contain Rich. Same email, same attachment, sent from a single Outlook account on one computer, sent at the same time, but one Gmail user receives the. If you receive an email with an attachment called houdini-connections.co.uk this mail is probably sent by someone who uses the Microsoft Outlook Rich Text Format (RTF). So I tried numerous test by sending pdf files to my secondary gmail. When I see the email via my Samsung S7, attachment show as houdini-connections.co.uk but it I see the. Do recipients of your emails complain about a mysterious attachment called houdini-connections.co.uk which they cannot open? Do files you attach to emails. The problem: Some email recipients on Mac OS X using Apple Mail and Gmail receive houdini-connections.co.uk attachments in place of correctly-encoded. Attachment Received as houdini-connections.co.uk Instead of PDF . houdini-connections.co.uk> wrote: >> I sent from my PC an email to myself to test. Do some of your recipients complain about a sketchy houdini-connections.co.uk file that Gmail and any other email client that supports the rich text format. Being a Thunderbird user, this presents a bit of a problem--one that has been well documented in Dealing with the houdini-connections.co.uk file and unreadable attachments . Exchange (and a few other email programmes, including gmail) can decipher. Prevent houdini-connections.co.uk attachments from being sent in Outlook.