Home » Kerio User Forums » Kerio Connect » Certificate rejected over TLS. (dh key too small) (Certificate rejected over TLS. (dh key too small))

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Good morning I updated kerio connecto version 8.5.2 from version 8.3.1 because some customers were receiving the following error message "(Certificate rejected over TLS. (Dh key too small))" sending email, thinking it was an issue of key 128bit but also with version 8.5.2 the problem persists, you can help me, thanks.
Pavel Dobry (Kerio)

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I think we need to know more details. Kerio Connect 8.5.2 uses 1024 bit prime in Diffie-Hellman and there should be no problem with TLS when communicating with other servers.
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