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Upgrade iRedMail from 1.6.3 to 1.6.4


Check out the on-premises, lightweight email archiving software developed by iRedMail team: Spider Email Archiver.

Paid Remote Upgrade Support

We offer remote upgrade support if you don't want to get your hands dirty, check the details and contact us.


General (All backends should apply these changes)

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:


[REQUIRED] CentOS Stream / Rocky / AlmaLinux 8: Switch to PHP v8.0

CentOS / Rocky / AlmaLinux 8 offers php v8.0 in official yum repository, you can switch to php v8.0 if you want by following this short tutorial, so that you can upgrade Roundcube to latest v1.6.2.

Fix incorrect ssl CA file and IDN support in Postfix

Run shell commands below as root user to fix incorrect ssl ca file, also disable IDN support.

postconf -e smtp_tls_CAfile='/etc/pki/tls/certs/ca-bundle.crt'
postconf -e smtpd_tls_CAfile='/etc/pki/tls/certs/ca-bundle.crt'
postconf -e smtputf8_enable=no
postfix reload
postconf -e smtp_tls_CAfile='/etc/ssl/certs/ca-certificates.crt'
postconf -e smtpd_tls_CAfile='/etc/ssl/certs/ca-certificates.crt'
postconf -e smtputf8_enable=no
postfix reload
postconf -e smtp_tls_CAfile='/etc/ssl/cert.pem'
postconf -e smtpd_tls_CAfile='/etc/ssl/cert.pem'
postconf -e smtputf8_enable=no
postfix reload

Upgrade iRedAPD (Postfix policy server) to the latest stable release (5.3.3)

Please follow below tutorial to upgrade iRedAPD to the latest stable release: Upgrade iRedAPD to the latest stable release

Upgrade netdata to the latest stable release (1.41.0)

If you have netdata installed, you can upgrade it by following this tutorial: Upgrade netdata.

Upgrade Roundcube webmail to the latest stable release (1.6.2)

CentOS 7: please stick to Roundcube 1.5.2

If you're running CentOS 7, please upgrade to Roundcube 1.5.2 instead. Roundcube 1.5.3 requires PHP-7, but CentOS 7 ships PHP-5.4 which is not supported by Roundcube 1.5.3 (and the latest 1.6.0).

It's time to leave your comfort zone and upgrade this server to at least CentOS Stream 8 or Rocky Linux 8.

Please follow Roundcube official tutorial to upgrade Roundcube webmail to the latest stable release: