Help & Support

SMTP Address Verification on Exchange Servers

Exchange does not natively reject invalid addresses during the SMTP connection. This can cause p...

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Full Whitelist

# Full Whitelist The full whitelist feature allows mails to bypass all forms of filtering. Unlik...

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SPF explanation

First thing, if you check this feature and get a message from a domain that doesn't have a SPF, m...

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Configuration of MailCleaner AntiSpam with Microsoft Office 365

# Office 365 ## Delivery server The destination server configured for your domain ( **Configura...

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News about virus waves

**2016/10/29 11:00:00** Due to a recent virus wave containing infected **documents with macros**,...

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ClamAV Unofficial Signatures

MailCleaner uses ClaimAV as the default antivirus software when scanning messages. There is a bas...

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max_input_vars

NOTE : this option has been changed to 3 000 entries so this workaround only applies if you alrea...

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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...

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Exim 4.94 Upgrade

There have been disclosures made for several critical vulnerabilities with the Exim MTA which is ...

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Hostlist Entry Formatting

In MailCleaner, there are several features which allow for policies on a hostname or IP basis. He...

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Modifying the exim configuration files.

In MailCleaner, there are 3 exim servers. The first one, called Incoming queue is the one accept...

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Watchdogs

MailCleaner Enterprise Edition has a number of Watchdogs which report common errors to MailCleane...

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Back scattering

This is rare spam attack. The spammers are faking error messages. For example if you send a real...

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Fail2Ban

| **Note** : How to activate fail2ban is describe below in this document | --- | ----- # Fail2b...

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Ticketing Workflow

# About our ticketing process ## Language for requesting support Remember that our support team...

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HTML controls whitelist

Senders can be whitelisted against the HTML controls checks. This will affect all users of th Mai...

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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...

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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...

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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...

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LDAPS for Microsoft Exchange

# Notice Starting from sometime in March of 2020, Microsoft is enforcing encryption for LDAP con...

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Extended SPF

The standard use of SPF is described in > https://support.mailcleaner.net/boards/3/topics/64-spf...

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Greylisting Configuration

Greylisting is a method of blocking spam, where The MTA temporarily fails incoming mail from an u...

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Newsletter issues

- a newsletter was quarantined despite the domain being configured in "Allow Newsletters by defau...

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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...

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Logs analyze based on tracing tool

~~~ We are getting way to many false positives. How can I adjust the spam filter agreesive level....

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