# Upgrade iRedMail from 0.9.5 to 0.9.6 [TOC] !!! warning THIS IS A DRAFT DOCUMENT, DO NOT APPLY IT. ## ChangeLog * May 3, 2016: Fixed: cannot deliver email to system account. ## General (All backends should apply these steps) ### Update `/etc/iredmail-release` with new iRedMail version number iRedMail stores the release version in `/etc/iredmail-release` after installation, it's recommended to update this file after you upgraded iRedMail, so that you can know which version of iRedMail you're running. For example: ``` 0.9.6 ``` ### Fixed: cannot deliver email to system account. iRedMail-0.9.5 and early releases have incorrect Postfix settings which causes emails sent to system account cannot be delivered to mailbox. Steps below fix it. Please open file `/etc/postfix/main.cf` (Linux/OpenBSD) or `/usr/local/etc/postfix/main.cf` (FreeBSD), remove below 2 parameters: ``` home_mailbox = ... mailbox_command = ... ``` Restarting or reloading Postfix service is required.