ox 7.6.1 imap-client does not work for some imapservers anymore

[user1378]

hello every1,

i am trying configure the imap-client-feature of the appsuite to external imapservers.

it works for the gmx-imapserver but not the imapserver of strato anymore. i get the following error-message while configuring manually:

Validierung des Servers imap.strato.de fehlgeschlagen. Grund: java.lang.RuntimeException: Could not generate DH keypair

if u need an englishversion of the error-message, just ask for it.
any help appreciated!!!
thanks in advance

user1378

[Wolfgang Rosenauer]

Sounds like an issue caused by newer/more secure SSL configuration on Strato side and missing support for that in your JVM.
Related please see here:

http://stackoverflow.com/questions/6851461/java-why-does-ssl-handshake-give-could-not-generate-dh-keypair-exception

[user1378]

the strato imap-server turned off sslv3, due to the poodle-attack.
but how can i tell java 6 to not use sslv3 anymore and use tls instead, till replacing it by a newer version?
or do i have to make any adjustments on ox?

[Wolfgang Rosenauer]

The right solution is to get a Java version which just works.
Why are you still on Java 6? Please try at least some recent Java 7 and see if it already helps.