Digital certificates for mobile phones
The most likely cause for a certificate error to appear on your Nokia E71 is that you are synchronising your email, calendar and contact information with a server that has a non-standard digital certificate installed. There are various causes and possible solutions to this error.
Background
Digital devices use digital certificates to securely transmit personal information and authentication details over the public Internet. When the Nokia E71 connects to your mail server to synchronise, it uses digital certificates when authenticating your login details.
Causes
One of the most common reasons for the error to appear on an E71 is if you are connecting to a server belonging to a small business that has not invested in a digital certificate from a recognised security vendor. If the certificate the business is using has been self-issued, it can cause this error to appear. Another cause can be that the incorrect time and date are set on the device, causing it to fail to authenticate properly.
Solutions
You can add certificates to the certificate store on the device to prevent the certificate error message continuing to appear. If you work for a small business you could also suggest that they invest in a digital certificate recognised by the official security authorities.
Tags: digital certificate, certificate error, digital certificates, error appear, small business, this error