iphone 5 Email client fails when connecting to server with certs signed by personal C

My mail resides on my own server with its own private CA that was used to sign the email server cert.

I used sendmail and CA and certs were created with below commands:

CA -newca

openssl req -newkey rsa:1024 -nodes -keyout sendmail_req.pem -out sendmail_req.pem

openssl ca -out sendmail_cert.pem -infiles sendmail_req.pem


Before I switched to iphone 5 I had Iphone 3s and all worked fine.

I would get a notification: cannot verify server identity, but after clicking continue all would work fine.

The client would connect on port 993 to receive email and on port 587 to send.


Now on iphone 5 I get error: Cannot verify Server Identity with no prompt to accept the cert.

Is there any work around for it?

I tried to export the cert from I mac and import to iphone but still no luck.

It looks like since iphone 4 the certs not issued by legal CA's don't work?


thx