The following message to was undeliverable.ĥ.4.7 - Delivery expired (message too old) 'no valid ip addresses'

To: Delivery Status Notification (Failure)Ĭontent-Type: multipart/report report-type=delivery-status boundary=''Ĭontent-Transfer-Encoding: quoted-printable Received-SPF: None (no SPF record) identity=helo client-ip=199.255.192.13 helo= envelope-from= from ( )īy (Postfix) with ESMTP id 5972F6000074C Received-SPF: pass (: best guess record for domain of designates 173.192.7.98 as permitted sender) client-ip=173.192.7.98 Īuthentication-Results: mx. spf=pass (: best guess record for domain of designates 173.192.7.98 as permitted sender) smtp.mail=

If you're modifying the return address (VERP address such as then you will want to comment out the line in main.cf for the bounce_notice_recipient, if you're interested in parsing the +id bounce only in your script.Delivered-To: by 10.213.9.17 with SMTP id j17csp4766ebj

So if you have a script that parses emails from files, this would work without the transport_maps and master.cf changes. Without the script in master.cf, the emails are sent to the bulkbounce account. If you want to have a specific user, you can create it with: useradd bounce User=nobody argv=/usr/local/bin/bounce_handler.py $ Then append a line similar to this to /etc/postfix/master.cf: Create /etc/postfix/transport_maps with this content: bulkbounce: This domain needs to be added to relay_domains. What we do, since we send messages for a large number of domains, is use as our VERP domain. forward format and how to deliver to a program. forward file to the home directory of the bounce user, which delivers to a program that parses the bounce information and records it in a database or file. If is the locally delivered domain for the server (mail is delivered to actual system accounts) then you can add a.

If is the virtual domain the best you can do is collect the messages in the mailbox (assuming recipient_delimiter = -). The exact answer to your question (handling the address) depends on how your server is configured to receive mail.

Email bounce back message example