shows that more than 81 per cent of attachments sent through Hotmail actually fail.
According to Hubmail
Microsoft has always denied that it was saving on bandwidth by refusing to send attachments. Users claimed however that that emails with attachments used to just disappear.
To test the claim Hubpages created one hundred emails. Each one had a different attachment. They were all .txt, .rtf, .doc, .jpg, .xls, or .ppt and of random sizes, the smallest being a 6K .txt and the largest a 1.9MB .ppt.
Two different Hotmail accounts were used and two different "generic" ISPs email accounts were used in different locations on different servers, again, ISP-1 and ISP-2.
Each email was given 48 hours for delivery. If it was not delivered in that time then it was considered vanished.
More than 81 per cent of all emails with attachments prior to their delivery disappeared without a trace.