My mail provider recently updated their SSL certificate and now I'm getting errors in K9 mail when I try to test my server information:
java.lang.RuntimeException: java.lang.RuntimeException: error:0407006A:rsa routines:RSA_padding_check_PKCS1_type_1:block type is not 01 (SHA-1))
Is this a problem with their certificate? It works fine in Thunderbird. Or is the problem with K9 mail?