In this article we will setup postfix to send email via an external smtp server and ask cron to send emails on failed jobs. Add sender_dependent_relayhost_maps = hash:/etc/postfix/relayhost_map to postfix, create /etc/postfix/relayhost_map: @example.com [relay.server.com] … The problem arises if I send emails to several email addresses! This is useful for testing address rewriting and routing configurations. Enabling the … Rewrite "To" address based on "From" address. Close. How to configure postfix for sender address rewriting? - Red Hat ... rewrite sender envelope address based on recipient \ itguy (15 Feb 2019). Re: recipient rewrite when sender != <> - ReadList.com With postfix, there is the possibility to use the “check_sender_access” to set individual actions per sender address. For the list of recipients and their action, a mapping needs to be created in the form of a hash database file. First you need to create a text file. I have "Ubuntu 20.04.3 LTS" on a raspberry pi 4, and I'm trying to config postfix to use sender dependent relayhosts. Arrange for internal network traffic to use a specific transport, such as the "relay" transport, and … Postfix logs rewritten addresses in its log file, so it may confuse you while troubleshooting. This feature is available in Postfix version 2.1 and later. Each server can handle multiple simultaneous connec- tions. Postfix will not check who you are (sender) and who you send the email to (recipient). In addition to the canonical maps which are applied to both sender and recipient addresses, you can specify canonical maps that are applied only to sender addresses or to recipient … That is all fine. /etc/postfix/ main.cf: transport_maps = hash:/etc/postfix/transport Relocated users table . If you want to rewrite outgoing addresses, then the two correct ways are either: myorigin implementation; Or. -C config_file-C config_dir The path name of the Postfix main.cf file, or of its parent directory. For the list of recipients and their action, a mapping needs to be created in the form of a hash database file. Instead, send an email report after verifying each recipient address. In postfix access tables there is FILTER … alias_maps alias_rewrite_maps sender_canonical_maps sender_rewrite_maps 0 0 votes Article Rating First, enable header checks in /etc/postfix/main.cf: header_checks = regexp:/etc/postfix/header_checks. Set the parameter … Example 4: Drop all Easy Auditor Report emails. postfix modify subject based on sender - Unix & Linux Stack …