Help & Support
Bash vulnerability
MailCleaner will be automatically patched very soon regarding this vulnerability. However, pleas...
Newsletter issues
- a newsletter was quarantined despite the domain being configured in "Allow Newsletters by defau...
Greylisting Configuration
Greylisting is a method of blocking spam, where The MTA temporarily fails incoming mail from an u...
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...
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...
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...
Log mails subjects and/or attachments names
By default, MailCleaner doesnt log mails subjects nor the attachment names. This is due to the fa...
Fail2Ban
# Fail2ban Usage in MailCleaner <hr/> *Jump straight to [`unban`](#Fail2Ban-management-command)...
Back scattering
This is rare spam attack. The spammers are faking error messages. For example if you send a real...
Watchdogs
MailCleaner Enterprise Edition has a number of Watchdogs which report common errors to MailCleane...
Ciphers support
Some of you are wondering why MailCleaner is supporting weak ciphers. We do so to propose the max...
Modifying the exim configuration files.
In MailCleaner, there are 3 exim servers. The first one, called Incoming queue is the one accept...
Allow / Block -lists per domain restrictions
Those features involve a modification of the Incoming MTA. Using those will restrict the maximum...
CPU dependencies for MailCleaner-MachineLearning Module
# CPU dependencies for MailCleaner-MachineLearning Module CPUs have different sets of instructio...
Reject domains containing capital letters
Domain names shouldnt have any capital letters in them according to RFCs so we decided to forbid ...
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...
VMWareTools for MailCleaner
## Information Enable VMWareTools for MailCleaner server with **open-vmware-tools** and **open-vm...
SpamC score adaptation
This documentation aims to show you how to adapt a SpamC score per domain or even per mailbox. If...
Hostlist Entry Formatting
In MailCleaner, there are several features which allow for policies on a hostname or IP basis. He...
Exim 4.94 Upgrade
There have been disclosures made for several critical vulnerabilities with the Exim MTA which is ...
MachineLearning
MailCleaner is currently in the processes of developing a new Anti-Spam filter module called Mach...
SPF explanation
First thing, if you check this feature and get a message from a domain that doesn't have a SPF, m...
[OPTION] Administration of Kaspersky AV
In addition to ClamAV with the latest commercial signatures, MailCleaner implements the famous K...
How to resolve mail spoofing problems
To avoid mail spoofing (forged mails), you can use authentication this way: 1) *(OPTIONNAL !!! : ...
Number of users / Billing mailbox / Callout
Your MailCleaner statistics doesn't display the correct number of mailbox used? Don't panic ! Th...