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Topic: Apache HTTP Server mod_rpaf x-forwarded-for Denial of Service

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9 professional
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: Centos 7.3
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx):Nginx
- Manage mail accounts with iRedAdmin-Pro? YES
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Our Firewall has detected the below :
182.61.189.218/x.x.x.x ( MailServer IP ) (N/A)     Apache HTTP Server mod_rpaf x-forwarded-for Denial of Service

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Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

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Re: Apache HTTP Server mod_rpaf x-forwarded-for Denial of Service

I'm not sure what issue we're talking about ...
Is it a configuration issue with default iRedMail settings?