On 10/22/2012 08:06 PM, Reindl Harald wrote:
roundcube or not does not matter here this informations are added by the MTA and not roundcube people should learn ro read mail headers :-)
from the source view of your message with roundcube displayed: Received: from [99.129.244.243] by web140401.mail.bf1.yahoo.com via HTTP;
the "via HTTP" shows clearly that you used yahoo-webmail
However, Roundcube has the http_received_header config option. When enabled Received header with client IP address will be added to the sent message headers.