64 lines
2.8 KiB
Plaintext
64 lines
2.8 KiB
Plaintext
##
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## SSL settings
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##
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# SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt>
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#ssl = yes
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# PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
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# dropping root privileges, so keep the key file unreadable by anyone but
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# root. Included doc/mkcert.sh can be used to easily generate self-signed
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# certificate, just make sure to update the domains in dovecot-openssl.cnf
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ssl_cert = </etc/dovecot/ssl/dovecot.pem
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ssl_key = </etc/dovecot/ssl/dovecot.key
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#ssl_alt_cert = </path/to/alternative/cert.pem
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#ssl_alt_key = </path/to/alternative/key.pem
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# If key file is password protected, give the password here. Alternatively
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# give it when starting dovecot with -p parameter. Since this file is often
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# world-readable, you may want to place this setting instead to a different
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# root owned 0600 file by using ssl_key_password = <path.
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#ssl_key_password =
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# PEM encoded trusted certificate authority. Set this only if you intend to use
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# ssl_verify_client_cert=yes. The file should contain the CA certificate(s)
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# followed by the matching CRL(s). (e.g. ssl_ca = </etc/ssl/certs/ca.pem)
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#ssl_ca =
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# Require that CRL check succeeds for client certificates.
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#ssl_require_crl = yes
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# Directory and/or file for trusted SSL CA certificates. These are used only
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# when Dovecot needs to act as an SSL client (e.g. imapc backend). The
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# directory is usually /etc/ssl/certs in Debian-based systems and the file is
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# /etc/pki/tls/cert.pem in RedHat-based systems.
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#ssl_client_ca_dir =
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#ssl_client_ca_file =
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# Request client to send a certificate. If you also want to require it, set
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# auth_ssl_require_client_cert=yes in auth section.
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#ssl_verify_client_cert = no
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# Which field from certificate to use for username. commonName and
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# x500UniqueIdentifier are the usual choices. You'll also need to set
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# auth_ssl_username_from_cert=yes.
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#ssl_cert_username_field = commonName
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# SSL DH parameters
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# Since v2.3.3+ Diffie-Hellman parameters have been made optional, and you are encouraged to disable non-ECC DH algorithms completely.
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# `docker-mailserver` is configured to use the recommended pre-defined 4096-bit DHE Group at https://github.com/internetstandards/dhe_groups
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ssl_dh = </etc/dovecot/dh.pem
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# Minimum SSL protocol version to use. Potentially recognized values are SSLv3,
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# TLSv1, TLSv1.1, and TLSv1.2, depending on the OpenSSL version used.
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ssl_min_protocol = TLSv1.2
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# SSL ciphers to use
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ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
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# Prefer the server's order of ciphers over client's.
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ssl_prefer_server_ciphers = yes
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# SSL crypto device to use, for valid values run "openssl engine"
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#ssl_crypto_device =
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