One of my just had an email off another site owner informing that he got a warning to the effect of "certificate not matching the owner of the site" Why would he get this? my site is not a an e commerce site. Could it be anything to do with me having google adsense on my site. (wordpress blog) thanks
Have you checked the certificate yourself? The certificate will normally be issued to a single domain host (e.g. mydomain.com). Have you got other domains parked on the domain that they may be accessing the site through? (e.g. otherdomain.com is parked on mydomain.com)