BUG: _presence_ of valid openssl.cnf Option = 'ServerPreference' causes Dovecot submission relay FAIL: "failed: Failed to initialize SSL: ..."

[JEAN-PAUL CHAPALAIN]

Hi,

In my case, it's value for MinProtocol that was wrong : must by TLSv1.1

Regards


Regards

Le jeu. 1 oct. 2020 à 17:52, JEAN-PAUL CHAPALAIN <
jean-paul.chapalain at arkea.com> a écrit :

> Hi,
>
> In my Centos-8 server, it was not necessary using  "Options =
> ServerPreference" parameter.
>
> My openssl.conf look like that :
>
> openssl_conf = default_modules
> [ default_modules ]
> ssl_conf = ssl_module
> [ ssl_module ]
> system_default = crypto_policy
> [ crypto_policy ]
> *.include /etc/crypto-policies/back-ends/opensslcnf.config*
>
> And /etc/crypto-policies/back-ends/opensslcnf.config :
> CipherString =
> @SECLEVEL=2:kEECDH:kRSA:kEDH:kPSK:kDHEPSK:kECDHEPSK:-aDSS:-3DES:!DES:!RC4:!RC2:!IDEA:-SEED:!eNULL:!aNULL:!MD5:-SHA384:-CAMELLIA:-ARIA:-AESCCM8
> Ciphersuites =
> TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:TLS_AES_128_CCM_SHA256
> MinProtocol = *TLSv1.1*
> MaxProtocol = TLSv1.3
>
> Regards
>
> Le jeu. 1 oct. 2020 à 17:29, PGNet Dev <pgnet.dev at gmail.com> a écrit :
>
>> hi,
>>
>> On 10/1/20 12:21 AM, JEAN-PAUL CHAPALAIN wrote:
>> > I had the same problem when migrating from Dovecot V2.2.36 on, Centos-7
>> to Dovecot v2.3.8 on Centos-8
>>
>> My report is specifically/solely about the addition/use of the
>>
>>         Options = ServerPreference
>>
>> parameter.
>>
>> I don't see that in your configuration.
>>
>> Are you using it? In a config using Dovecot's submission proxy?
>>
>
>
> --
> --  Jean-Paul Chapalain - Arkea - DEXT/IAAS
> --  1 rue Louis Lichou - Le Relecq-Kerhuon - 29808 Brest Cedex 9, FRANCE
> --  +33298002873 (int:302873)
> --  Pgpkey=9f7a25a76f7e036a2c07fcb16eccd41c015d5fca
>


-- 
--  Jean-Paul Chapalain - Arkea - DEXT/IAAS
--  1 rue Louis Lichou - Le Relecq-Kerhuon - 29808 Brest Cedex 9, FRANCE
--  +33298002873 (int:302873)
--  Pgpkey=9f7a25a76f7e036a2c07fcb16eccd41c015d5fca

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