On 2020-01-25 Jutta Wrage via Exim-users-de 
<[email protected]> wrote:
[...]
> Auf der Serverseite starte das ganze mit:

> SNMP connect from [...]
> SMTP protocol error in "STARTTLS" H=CLIENTHOST (mail.example.com) [My_IP] 
> I=[Server_IP]:587 STARTTLS command used when not advertised
[...]
> Für mich ist das en Hinweis, daß auf unserem Server irgend etwas in
> der Configuration fehlt oder falsch ist.

> In der Config des Servers steht unter anderem:

> MAIN_TLS_CERTIFICATE = CONFDIR/exim.crt
> MAIN_TLS_PRIVATEKEY = CONFDIR/exim.key

> unter /etc/exim4/ sind exim.crt und exim.key links auf andere Dateien.
[...]

Aus der vielgeliebten /usr/share/doc/exim4-base/README.Debian.gz
(Version buster):
| 2.2.2. Enabling TLS support for Exim as server
| 
|    You should have created certificates in /etc/exim4/ either by hand or
|    by usage of the exim-gencert (which requires openssl). exim-gencert is
|    shipped in /usr/share/doc/exim4-base/examples/ and takes care of proper
|    access privileges on the private key file.
| 
|    Now, enable TLS by setting the macro MAIN_TLS_ENABLE in a local
|    configuration file as described in Section 2.1.3, "Using Exim
|    Macros to control the configuration".

 Ist das von deiner Seite durchgeführt worden?

 lg Andreas
-- 
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'

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