I have a self-signed certificate which gives a warning in the eamil application:
"Website has sent an untrusted certificate. Accept anyway"
If I select "Accept this time only" everything works fine.
If I select "Accept permanently" it gives a second popup "Future connections to xxx will be made without certificate warning. Continue?". The email connection will then fail with "Failed to connect (Time out)."
The solution to this problem is to download the certificate in DER format to the phone and open the certificate to save it to the certificate store.
Then go to Tools -> Settings -> Security and select certificate management. You can then view and make further changes to the certificate.
To convert the certificate using openssl, do:
More detailed instructions are available here.
"Website has sent an untrusted certificate. Accept anyway"
If I select "Accept this time only" everything works fine.
If I select "Accept permanently" it gives a second popup "Future connections to xxx will be made without certificate warning. Continue?". The email connection will then fail with "Failed to connect (Time out)."
The solution to this problem is to download the certificate in DER format to the phone and open the certificate to save it to the certificate store.
Then go to Tools -> Settings -> Security and select certificate management. You can then view and make further changes to the certificate.
To convert the certificate using openssl, do:
openssl x509 -in cert.pem -out cert.cer -outform DER
More detailed instructions are available here.

Comments (1)
I had a similar problem when we changed certificate on our server. The solution in our case was to delete the old certificate from the phone using the steps you outlined.
Written by Guest: Paul R at 4:52pm, 28 April 2009.
Charles Darke | 23 September 2008