docker-mailserver/target/bin/excluderelaydomain

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#!/bin/bash
# shellcheck source=../scripts/helpers/index.sh
source /usr/local/bin/helpers/index.sh
function _main
{
[[ ${1:-} == 'help' ]] && { __usage ; exit 0 ; }
local DOMAIN="${1}"
[[ -z ${DOMAIN} ]] && { __usage ; _exit_with_error 'No domain specified' ; }
_exclude_domain_from_relayhosts
}
function __usage
{
printf '%s' "${PURPLE}excluderelayhost${RED}(${YELLOW}8${RED})
${ORANGE}USAGE${RESET}
./setup.sh relay exclude-domain <SENDER DOMAIN>
${ORANGE}OPTIONS${RESET}
${BLUE}Generic Program Information${RESET}
help Print the usage information.
${ORANGE}DESCRIPTION${RESET}
When a default relay-host is configured (via ENV), the default behaviour
is to relay all your mail accounts outgoing mail through that service.
This command allows to opt-out from that default behaviour by excluding
all mail accounts belonging to a hosted domain you specify.
${ORANGE}EXAMPLES${RESET}
${LWHITE}./setup.sh relay exclude-domain example.com${RESET}
Any mail submitted from your '@example.com' accounts will be sent
without relaying through a default relay-host (if one was configured).
${ORANGE}EXIT STATUS${RESET}
Exit status is 0 if command was successful. If wrong arguments are provided
or arguments contain errors, the script will exit early with exit status 1.
"
}
# Config is for sender dependent relay-host mapping,
# excludes appending a sender from the real generated mapping in `helpers/relay.sh`.
function _exclude_domain_from_relayhosts
{
local SENDER="@${DOMAIN}"
local DATABASE_RELAY='/tmp/docker-mailserver/postfix-relaymap.cf'
# NOTE: No third arg is required.
# This won't cause any problems, a 'space' will be added with the key.
# That helps ensure repeat DB edits for the entry match correctly.
#
# `helpers/relay.sh` is also fine with this, and will eventually drop
# the need for this command entirely once that helper is refactored.
_db_entry_add_or_replace "${DATABASE_RELAY}" "${SENDER}"
}
_main "${@}"