Install the webmail client Rainloop on CentOS 8

What is Rainloop?

A simple Webmail client that does not require a DB. SquirrelMail was famous, but I used it conveniently with a multi-account Webmail client. I would like to summarize the procedure with the introduction of CentOS8.



~~ I can't use it ~~ I can't use it.

Originally, let's enable SELinux. I would like to say, If it stumbles around SELinux, I will skip it because I want to move it first and huh. Noodles cannot be hardened due to lack of so-called skill. That's it. Please eat deliciously. (It's for internal release, but when you open it to the outside, please judge whether it can be adopted or not.)

Promised remi repository added

# dnf install -y epel-release
# dnf install -y

Install dnf-util

# dnf install -y dnf-utils

PHP 7.4 installation

# dnf module install php:remi-7.4

Around php settings

# cp -p /etc/php.ini{,.bak.`date +%Y%m%d`}
# vi /etc/php.ini
# diff /etc/php.ini{,.bak.`date +%Y%m%d`}
< post_max_size = 10G
> post_max_size = 8M
< upload_max_filesize = 10G
> upload_max_filesize = 2M
< date.timezone = "Asia/Tokyo"

httpd installation

# dnf module install -y httpd
# systemctl enable --now httpd

firewall open

# firewall-cmd --add-service=http --permanent
# firewall-cmd --reload

Install rainloop

# cd /var/www/html
# curl -sL | php

       [RainLoop Webmail Installer]

 * Connecting to repository ...
 * Downloading package ...
 * Complete downloading!
 * Installing package ...
PHP Notice:  A non well formed numeric value encountered in /var/www/html/ff1fcaf169289dd373a566cbacd9f706/ff1fcaf169289dd373a566cbacd9f706.lib on line 1849
 * Complete installing!

 * [Success] Installation is finished!

Change permission

# chmod 777 data

Initial setup

Access http: // {IP address} /? / Admin with a browser. In the case of chrome, it is a warning of password leakage, but click OK without worrying about it.

admin 123456


--Change Language and Language (admin) to Japanese --Changing administrator password Do not forget to carry out.


Enter the IMAP / SMTP server setting information for each domain


When logging in, log in with your email address and password for your email account. Since the IMAP folder is displayed directly on the browser, it does not consume disk.

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