OVERWRITE_FROM This will rewrite the from address overwriting it with the specified address for all email being relayed. If set to yes, Postfix will always add missing headers among From:, To:, Date: or Message-ID.
e SMTP_USERNAME_FILE=/secrets/smtp_usernameĪLWAYS_ADD_MISSING_HEADERS This is related to the always_add_missing_headers Postfix option (default: no). With fluentd installed on the Postfix Docker Image and configuration available with an override, we could parse the postfix logfile and save alle mail traffic logs in mongoDB for later review as RSPAMD history is totaly insufficient. SMTP_USERNAME_FILE Setting this to a mounted file containing the username, to avoid usernames in env variables. e SMTP_PASSWORD_FILE=/secrets/smtp_password SMTP_PASSWORD_FILE Setting this to a mounted file containing the password, to avoid passwords in env variables. SMTP_NETWORKS Setting this will allow you to add additional, comma seperated, subnets to use the relay. Will appear as "RelayTag: $" in the email headers. SMTP_HEADER_TAG This will add a header for tracking messages upstream. The following env variable(s) are optional. Emails will appear to come from the hostname's domain.
POSTFIX DOCKER SYSLOG PASSWORD
SMTP_PASSWORD (Mandatory if SMTP_USERNAME is set) Password of the SMTP user.SMTP_USERNAME (Optional) Username to authenticate with.SMTP_PORT (Optional, Default value: 587) Port address of the SMTP server to use.SMTP_SERVER Server address of the SMTP server to use.The following env variables need to be passed to the container: Enjoy.Docker pull ghcr.io/revsystem/postfix:latest other options.', and specify a distinct Postfix syslogname setting in the container (for example with 'postconf syslognamethe-name-here'). In order for you to use it, swap “example” with your domain. To collect Postfix syslog information on the containers host, mount the hosts /dev/log socket into the container, for example with 'docker run -v /dev/log:/dev/log. RUN cp /etc/nf /etc/hosts /etc/nf /etc/nf /etc/services /var/spool/postfix/etc FROM ubuntu:18.04Įcho "postfix postfix/mailname string " | debconf-set-selections & \Įcho "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections & \ I then copied each of the files in it from /etc and like magic, my new container worked. The next attempt was to run as a service again and look at the contents of the /var/spool/postfix/etc directory. Somewhere in the land of stack overflow, I found a hint.
It was something that I stumbled upon accidentally. It wasn’t something that I would just notice. The start- fg command line argument did not. The daemon created links or copied certain files from /etc to /var/spool/postfix/etc.
Why would DNS only work as a daemon ? I spend way too much time looking for that answer. When it ran in the foreground, it gave me DNS errors. Is there a way to filter the Postfix (and Dovecot) logs to exclude particular strings, from both the Redis logs and the Docker logs I’m using a service that monitors the uptime of my servers, and their connections are filling my logs with connect/disconnect logging (connect from xxxx, disconnect from xxxx) so I’m worried I won’t notice real actual errors in the logs. When it ran as a daemon, it worked perfectly, but I couldn’t use it as a daemon because I needed it to run in the foreground. I then used the start-fg command line argument to start it in the foreground in order to keep the container running. The thing is, I got it to work as a daemon.
POSTFIX DOCKER SYSLOG TRIAL
After more trial and error than I would like to admit, I got it to work. So I needed a Postfix image to act as a relay SMTP server for my application that was also in a Docker container. Also, you really should have seen that coming. If you guessed more than zero, you were wrong. Guess how many official Postfix Docker images there are. Recently, I had a requirement to send emails from a Docker container. What little I know about servers is enough to allow me to build one in order to my job. I AM NOT A SERVER ADMINISTRATOR! In case that wasn’t clear, I am not a server administrator.
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