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I have a cloud server, I use apache and whm control panel<br />
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I had an account that has more than 100 email addresses, they connect to server around the country, when they do that the e-mails do not work because there are too many request from different locations and whm thinks that there is an attack but there is not an attack.<br />
where can I change this setting?
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I have a cloud server, I use apache and whm control panel

I had an account that has more than 100 email addresses, they connect to server around the country, when they do that the e-mails do not work because there are too many request from different locations and whm thinks that there is an attack but there is not an attack.
where can I change this setting?

whm settings for mails

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

The Apache HTTP Server is a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards. Typically Apache is run on a Unix-like operating system, but it is available for a wide variety of operating systems, including Linux, Novell NetWare, Mac OS-X and Windows. Released under the Apache License, Apache is open-source software.

Apache Web Server

A web server refers to the software that helps to deliver web content that can be accessed either through the Internet or through an intranet. The primary function of a web server is to store, process and deliver web pages to clients. The communication between client and server takes place using the Hypertext Transfer Protocol (HTTP). The most common use of web servers is to host websites, but there are other uses such as gaming, data storage, running enterprise applications, handling email, FTP, etc.