Help & Support
MailCleaner Demo Server Configuration
## Access to MailCleaner Demo (reference configuration) Some customers report that this is diffi...
Monitoring MailCleaner with SNMP
Setting up MailCleaner external monitoring via SNMP. ## How MailCleaner is providing monitoring ...
SMTP issues
- SPF prevented a mail to come in : this is most likely a configuration issue on the side of the ...
SPF configuration
SPF is a very usefull tool to help fighting versus spams and phishings, we strongly recommand to ...
Exception lists / Sender Rules
# How Sender Rules Work ## What Sender Rules exist There are a variety of rules that can be cre...
Retrieving the whitelist/blacklist/whitelist dedicated to Newsletters
You can get this information by connecting to your master server using SSH. Then connect to the m...
Hostlist Entry Formatting
In MailCleaner, there are several features which allow for policies on a hostname or IP basis. He...
Password protected archives : Manage a whitelist
When you set the feature > Configuration->Content Protection->Message format controls->Password ...
Quarantine report configuration
If you think your users dont get the quarantine message the way they should, here is how to inves...
How to release a mail blocked in dangerous content quarantine
If your MailCleaner is hosted by a MailCleaner Partner or by your company, just contact your IT a...
Modifying Enterprise MailCleaner Source Code
MailCleaner Source Code is GPL, and easily available on your MailCleaner Virtual Appliance, for C...
MailCleaner user interface customization
# User interface customization **WARNING:** When you customize your MailCleaner interfaces or r...
Auto-configuration
# Introduction **The auto-configuration is available only from version 2017.04 (MailCleaner on t...
Manage quarantines in Exchange - O365 - Outlook
# Manage quarantines in Exchange - O365 - Outlook If you do not want to manage quarantines on Ma...
SPF Sender Policy Framework
Using SPF to trust your email partners. ## Resume SPF allows a domain to provide a list of IPs ...
Newsletter issues
- a newsletter was quarantined despite the domain being configured in "Allow Newsletters by defau...
MailCleaner support - Missing keys
Our ssh public keys are present on your MailCleaners servers so that we can provide you with supp...
GitHub Branches
# Notice Work-in-progress document discussing future MailCleaner development. The 'Legacy' model...
Watchdogs
MailCleaner Enterprise Edition has a number of Watchdogs which report common errors to MailCleane...
DMARC Configuration and purging of reports
### DMARC (Domain-based Message Authentication, Reporting and Conformance) DMARC is a technical ...
max_input_vars
NOTE : this option has been changed to 3 000 entries so this workaround only applies if you alrea...
Minimum requirements
For production environment, make sure that your hardware meets the minimum requirements: * 2 CPU...
Exim 4.94 Upgrade
There have been disclosures made for several critical vulnerabilities with the Exim MTA which is ...
VMWareTools for MailCleaner
## Information Enable VMWareTools for MailCleaner server with **open-vmware-tools** and **open-vm...
SMTP Address Verification on Exchange Servers
Exchange does not natively reject invalid addresses during the SMTP connection. This can cause p...
Configuration > Anti-Spam > TrustedSources
TrustedSources anit-spam module. ## Enable all trusted path detection The "all trusted path det...
Configure your Google account if using MailCleaner in front
This is a an extract of the official documentation of Google : source: https://support.google.com...
Advantages of the MailCleaner solution with Microsoft Office 365
### Newsletters detection function MailCleaner has a newsletters detection feature allowing users...
Configuration of MailCleaner AntiSpam with Microsoft Office 365
# Office 365 ## Delivery server The destination server configured for your domain ( **Configura...
SpamC rules signification
If an email was caught by SpamC, you may want to know what does a rulename mean. This document li...
MailCleaner Newsletter Module (FR)
English version: https://support.mailcleaner.net/boards/3/topics/32-mailcleaner-newsletter-module...
Too much VIRUS/Malwares/Trojans pass through MailCleanner
Hello, PLEASE verify first: message#35 because this issue is normally solved ---------------- ...
Greylisting Configuration
Greylisting is a method of blocking spam, where The MTA temporarily fails incoming mail from an u...
Installation of MailCleaner options or add-ons
### Introduction In order to make your MailCleaner options installation easier, we provided an i...
Customizing MailCleaner s web interface and summary reports
Modifying the user part is done trough those files : /usr/mailcleaner/www/user/htdocs/login....
Extended SPF
The standard use of SPF is described in > https://support.mailcleaner.net/boards/3/topics/64-spf...
SNMP Shell Script
This is a shell script provided by the community in order to checks the MailCleaner overall statu...
MailCleaner on Amazon Web Services (AWS)
**French version below / version française ci dessous:** https://support.mailcleaner.net/boards/3...
News about virus waves
**2016/10/29 11:00:00** Due to a recent virus wave containing infected **documents with macros**,...
Network error after MAC address change
After an hardware crash on hypervisor (VMWare, Hyper-v, KVM) all the network parameters are unset...
MailCleaner sur Amazon Web Services (AWS) FR
## VERSION FRANÇAISE: Bienvenue sur l'article MailCleaner on AWS qui vous décrit les étapes néce...
Remove a node from cluster
# Preparation Fist of all, you have to remove this node from your domain's MX record. Be sure th...
I am getting blacklisted
You have been blacklisted and you want to know why. The first thing to check is for an unusual a...
Cloning a 2016 version of MailCleaner to a 2019 version
If you have a 2016.xx version of MailCleaner (or earlier) and want to migrate it to our latest ve...
Back scattering
This is rare spam attack. The spammers are faking error messages. For example if you send a real...
[OPTION] Administration of Kaspersky AV
In addition to ClamAV with the latest commercial signatures, MailCleaner implements the famous K...
Log mails subjects and/or attachments names
By default, MailCleaner doesnt log mails subjects nor the attachment names. This is due to the fa...
Customizing the MailCleaner firewall
If you change the MailCleaner server's firewall rules with iptables directly, the changes will on...
Cloning the same MailCleaner
This procedure **DO NOT** apply to create a extra node for the cluster. For emergency recovery, ...
Configuration > Anti-Spam > global settings
~~~ Trusted IPs/Networks ~~~ The syntax is standard CIDR notation, such as 192.168.1.0/24, one I...
Password protected content blocked in content Quarantine
If you want to whitelist a sending domain towards this feature, please read : > https://support.m...
Not a spam ? How to request a filter adjustment
On the quarantine page: 1. Click on the filter adjustment request icon next to the message of int...
Ciphers support
Some of you are wondering why MailCleaner is supporting weak ciphers. We do so to propose the max...
Fail2Ban
| **Note** : How to activate fail2ban is describe below in this document | --- | ----- # Fail2b...
How to create custom SpamC rules
This documentation aims to show you how to adapt a SpamC score for all domains. If you want to ch...
RBLs
# What are RBLs RBLs are "Real time Blacklists/Blocklists" This is to say that it is mechanism ...
Getting the summary reports more frequently than daily
MailCleaner sends summaries about the mail caught in spam filters per day, week or month. If you...
Logs analyze based on tracing tool
~~~ We are getting way to many false positives. How can I adjust the spam filter agreesive level....
MailCleaner InfoBox - The new way to communicate
Dear Customers, we published a new InfoBox intended to facilitate the communication between you,...
Modifying the exim configuration files.
In MailCleaner, there are 3 exim servers. The first one, called Incoming queue is the one accept...
MailCleaner API Documentation
Download the **mailcleaner-api.tar.gz** and open the **index.html** file
Exim queue management
> **State: Draft** The short way: It is simply Exim MTA queue management with some specificities...
Spectre - Meltdown
Following the announcement of Spectre and Meltdown vulnerabilities, we have installed the latest ...
Low the scores linked to LOTS_OF_MONEY
If the mail flow of one (or several) of your users is impacted with our rules about LOTS_OF_MONEY...
How to configure MailCleaner on our cloud, when you got your login ?
Hello, You ll need to do at least these 3 things to make MailCleaner working, secure, and efficie...
HTML controls whitelist
Senders can be whitelisted against the HTML controls checks. This will affect all users of th Mai...
Repair a database
For checking the databases: ~~~ /usr/mailcleaner/bin/check_db.pl --mycheck # On master /usr/mail...
Having quarantine report more frequent than daily
MailCleaner's policy is to deliver the quarantine report at max daily. In fact we think that is m...
LDAPS for Microsoft Exchange
# Notice Starting from sometime in March of 2020, Microsoft is enforcing encryption for LDAP con...
Ticketing Workflow
# About our ticketing process ## Language for requesting support Remember that our support team...
Configure a loadbalancing cluster
Create a MailCleaner Cluster is a major feature of MailCleaner. ## Installation First, install ...
Inserting black/white lists in bulk
Our advice on black or whitelists is to use them as little as possible. In our opinion they shoul...
White list… why to avoid using it.
http://www.mailcleaner.net/antispam/documentations/whitelist.html See also: message#10
Bash vulnerability
MailCleaner will be automatically patched very soon regarding this vulnerability. However, pleas...
Disabling FuzzyOCR module for Spamassassin
## Information FuzzyOCR is a SpamAssassin module which allows text detection inside pictures. ##...
Full Whitelist
# Full Whitelist The full whitelist feature allows mails to bypass all forms of filtering. Unlik...
MailCleaner Network configuration
For more information, please refer to Chapter 1 of the MailCleaner installation manual: https://w...
Is there a way to whitelist addresses for outbound messages?
The feature to whitelist an address for outbound messages does not currently exist. This feature...
ESET Anti-Virus
# Installation Please contact MailCleaner sales to get a trial license. When this is done, you ...
How to configure a valid certificate in MailCleaner
# How to configure a valid certificate in MailCleaner By default, MailCleaner uses a self-signed...
Newsletter marked with "?Spam" tag
There is no unique tag for newsletters, so if you don't want the **{spam?}** tag you need to set ...
How to create a ticket with all informations
Minimizing respond time by providing essential information at ticket creation really improve our ...
SMTP Long Lines
# Background The [SMTP specification](https://www.rfc-editor.org/rfc/rfc821) provides the protoc...
SPF explanation
First thing, if you check this feature and get a message from a domain that doesn't have a SPF, m...
How to report a wrong analyze
Hello, MailCleaner was designed as community and collaborative anti-spam software. To be more pr...
Allow / Block -lists per domain restrictions
Those features involve a modification of the Incoming MTA. Using those will restrict the maximum...
Kaspersky Anti-Virus
# Installation Please contact MailCleaner support to have the Kaspersky add-on option installed....
DNS resolver for MailCleaner
## How to configure DNS resolver for MailCleaner. | **WARNING** : Don't use public DNS (i.e Goog...
Kernel Update
MailCleaner currently ships with a rather old version of the Linux kernel; version 3.16.0-11. As ...
MachineLearning
MailCleaner is currently in the processes of developing a new Anti-Spam filter module called Mach...
SpamC score adaptation
This documentation aims to show you how to adapt a SpamC score per domain or even per mailbox. If...
Freemail
Freemail is the name we give to big emails accounts providers. Those emails accounts dont require...
CPU dependencies for MailCleaner-MachineLearning Module
# CPU dependencies for MailCleaner-MachineLearning Module CPUs have different sets of instructio...
Number of users / Billing mailbox / Callout
Your MailCleaner statistics doesn't display the correct number of mailbox used? Don't panic ! Th...
Reject domains containing capital letters
Domain names shouldnt have any capital letters in them according to RFCs so we decided to forbid ...
How to resolve mail spoofing problems
To avoid mail spoofing (forged mails), you can use authentication this way: 1) *(OPTIONNAL !!! : ...
MailCleaner Newsletter Module
MailCleaner includes a module dedicated to “Newsletters Detection”. It is really important you f...