On 21/8/2019 18:51, Kristijan Savic - ratiokontakt GmbH via dovecot wrote:
SSL3 is no longer included in the cipher sets. Try this:
ssl_min_protocol = SSLv3
Thanks. Unfortunately, no dice - same error.
Any other tips? I was under the impression "no shared cipher" was rather the
problem?
Yes this is exactly the problem but the error is specific to SSL3 shared
ciphers.
routines:ssl3_get_client_hello:no shared cipher
You may also want to add this
ssl_cipher_list = ALL
Basically you should focus as to why SSL3 ciphers are not activated. If
the above parameter did not work, it is very possible the openssl
distribution you have has not included SSL3 support at all. You may have
to do some recompiling if this is the case.
If your old clients are only from your internal net and you do not
provide any ISP like services you may consider upgrading the clients as
you will have quite often issues such as this one in the near future as
SSL3 support and below is in the process of being dropped from almost
everything.
