spam and viruses can be defeated simply by deploying MailScanner. systems, this first version of the MailScanner Manual includes only installation. MailScanner Guide. Contents. Acknowledgements; Brief Description; Features and Highlights; How It Works; Presentation given at JANET NetWorkshop Abstract. A guide to installing and using MailScanner, and a complete training manual describing its operation and use in fine detail.

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Most sites set their delivery timeouts to less than 7 days, so that is a reasonable value to use. Some versions of Microsoft Outlook generate unparsable Rich Text format attachments. Include Scanner Name In Reports.

MailScanner Configuration Index

Use this if you are controlling the execution of MailScanner with a tool like DJB’s ‘supervise’ see http: Do you want to add a watermark to each email message? The default value of “mail” will cause the MailScanner logs to go into the same place as all your other mail logs. If this is set to no, then just the company name and country and any names between the two, dependent on the specific country must match.

Gudie can be seen from the above order of operation, even if everything fails e. To minimise any chance of message corruption, any messages that are found to be entirely clean and uninfected are moved directly between the two queues; no attempt is made to rebuild them from their constituent MIME entities. Space-separated list of any combination of 1. This will cause addresses from which you get real mail, to be marked so that it will never mailscannner spam-tag messages from those addresses.


Allow any attachment MIME types matching any of the patterns listed here. This is a space-separated list of the types which are treated as archives. This value is a good compromise as very few spam messages are bigger than this.

If this is not specified, the the old value of “MailScannerWebBug” is used, which of course is not an image and may well upset layout of the email. Setting it to mailscaanner means that it will be treated as “normal” spam. To disable this feature set this to 0.

The ClamD Lock file should be created by clamd init script in most cases. For this to work you need to use the same value for “Watermark Header”, and have the same “Watermark Secret”. During this time you can either wait, or simply disable SpamAssassin checks until it has completed.

Hide the directory path from all the system administrator notices. A message is only rebuilt from its MIME entities if an guidee or dangerous filename was found, causing the replacement of the attachment with a text message. Any errors will therefore be reported by SpamAssassin and will show up by running ‘MailScanner –lint’ or ‘MailScanner –debug-sa’. I will find the subdirectories automatically.

Install Guide

The maximum unpacked size of each file in an archive. Preceding the action name with “not-” as in “not-deliver” or “not-forward user domain. Append the new data to the existing header “add”: However, it does slightly slow SpamAssassin and so is disabled by default. If double the timeout value is guire i. There are some companies, such as banks, that insist on sending out email messages with links in them that are caught by the “Find Phishing Fraud” test described above. If an attachment or the entire message triggered a size check, but there was nothing else wrong with the message, do you want to modify the subject line?


MailScanner is a complete e-mail security system designed for use on e-mail mailscnaner. This is the name of the file that translates the names of the “Spam List” values to the real DNS names of the spam blacklists. You may well consider, for example, zip and rar files to be archives, but maybe TNEF files to not be archives as they are really just another way of supplying attachments that is only used by Microsoft Exchange and Outlook. If you have a quiet mail server, you might want to mailcsanner this value so it mailscanner less load on your server, at the cost of slightly increasing the time gjide for an average message to be processed.

For example, a rule starting rename to. This is a bad idea as it leaves you unprotected against various Microsoft-specific security vulnerabilities.