dataset/seed/dovecot/templates/10-ssl.conf

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##
## SSL settings
##
# SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt>
# disable plain pop3 and imap, allowed are only pop3+TLS, pop3s, imap+TLS and imaps
# plain imap and pop3 are still allowed for local connections
ssl = required
# PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
# dropping root privileges, so keep the key file unreadable by anyone but
# root. Included doc/mkcert.sh can be used to easily generate self-signed
# certificate, just make sure to update the domains in dovecot-openssl.cnf
#GNUNUX ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
#GNUNUX ssl_key = </etc/pki/dovecot/private/dovecot.pem
#>GNUNUX
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ssl_cert = <{{ general.tls_cert_directory }}/dovecot.crt
ssl_key = <{{ general.tls_key_directory }}/dovecot.key
{% for mail in general.mail.domain.mail_domains %}
local_name {{ mail.imap_domainname }} {
ssl_cert = <{{ general.tls_cert_directory }}/{{ mail.imap_domainname }}.crt
ssl_key = <{{ general.tls_key_directory }}/{{ mail.imap_domainname }}.key
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}
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{% endfor %}
local_name {{ general.network.last_server_name }} {
ssl_cert = <{{ general.tls_cert_directory }}/dovecot.crt
ssl_key = <{{ general.tls_key_directory }}/dovecot.key
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}
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#<GNUNUX
# If key file is password protected, give the password here. Alternatively
# give it when starting dovecot with -p parameter. Since this file is often
# world-readable, you may want to place this setting instead to a different
# root owned 0600 file by using ssl_key_password = <path.
#ssl_key_password =
# PEM encoded trusted certificate authority. Set this only if you intend to use
# ssl_verify_client_cert=yes. The file should contain the CA certificate(s)
# followed by the matching CRL(s). (e.g. ssl_ca = </etc/pki/dovecot/certs/ca.pem)
#ssl_ca =
# Require that CRL check succeeds for client certificates.
#ssl_require_crl = yes
# Directory and/or file for trusted SSL CA certificates. These are used only
# when Dovecot needs to act as an SSL client (e.g. imapc backend or
# submission service). The directory is usually /etc/pki/dovecot/certs in
# Debian-based systems and the file is /etc/pki/tls/cert.pem in
# RedHat-based systems. Note that ssl_client_ca_file isn't recommended with
# large CA bundles, because it leads to excessive memory usage.
#ssl_client_ca_dir =
#ssl_client_ca_file =
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ssl_client_ca_file = {{ general.tls_ca_directory }}/IMAP.crt
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# Require valid cert when connecting to a remote server
#ssl_client_require_valid_cert = yes
# Request client to send a certificate. If you also want to require it, set
# auth_ssl_require_client_cert=yes in auth section.
#ssl_verify_client_cert = no
# Which field from certificate to use for username. commonName and
# x500UniqueIdentifier are the usual choices. You'll also need to set
# auth_ssl_username_from_cert=yes.
#ssl_cert_username_field = commonName
# SSL DH parameters
# Generate new params with `openssl dhparam -out /etc/dovecot/dh.pem 4096`
# Or migrate from old ssl-parameters.dat file with the command dovecot
# gives on startup when ssl_dh is unset.
#ssl_dh = </etc/dovecot/dh.pem
# Minimum SSL protocol version to use. Potentially recognized values are SSLv3,
# TLSv1, TLSv1.1, TLSv1.2 and TLSv1.3, depending on the OpenSSL version used.
#
# Dovecot also recognizes values ANY and LATEST. ANY matches with any protocol
# version, and LATEST matches with the latest version supported by library.
#ssl_min_protocol = TLSv1.2
# SSL ciphers to use, the default is:
#ssl_cipher_list = ALL:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH
# To disable non-EC DH, use:
#ssl_cipher_list = ALL:!DH:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH
ssl_cipher_list = PROFILE=SYSTEM
# Colon separated list of elliptic curves to use. Empty value (the default)
# means use the defaults from the SSL library. P-521:P-384:P-256 would be an
# example of a valid value.
#ssl_curve_list =
# Prefer the server's order of ciphers over client's.
#ssl_prefer_server_ciphers = no
# SSL crypto device to use, for valid values run "openssl engine"
#ssl_crypto_device =
# SSL extra options. Currently supported options are:
# compression - Enable compression.
# no_ticket - Disable SSL session tickets.
#ssl_options =