How to configure MailEnable spam options to provide an effective spam protection service.

SUMMARY

The spam protection script filter uses various criteria's in order to calculate the positive and negative weighting to apply the correct spam score header to a message. To make the spam protection script effective, is to ensure that the critieria's used by the spam protection script that provide the highest positive weighting are enabled and have been configured correctly. Reviewing the list below and enabling the options will provide a reliable spam score to a message.

DETAIL

Reviewing the Bayesian filtering settings and train the dictionary based on good and bad messages that are sent/received from the server. This can be accomplished by using the manual training method or auto training.

- Information on how to enable Bayesian auto training can be found in the following section of the MailEnable documentation: Message Filtering > Bayesian filtering > Configuring Bayesian Filtering

- Information on how to manually train the dictionary and collecting ham and spam messages can be found here: https://www.mailenable.com/documentation/10.0/Enterprise/Manual%20training.html

Enable SMTP Reverse DNS/URL blacklisting:

- Please review the following: https://www.mailenable.com/documentation/10.0/Enterprise/Reverse%20DNS%20blacklisting.html
Enable SMTP SPF:

- Please review https://www.mailenable.com/documentation/10.0/Enterprise/Sender%20Policy%20Framework%20(SPF).html
Enable the following SMTP security settings:

- Require PTR DNS entry for unauthenticated connections.

- Authenticated senders must use a valid email address.

- Reject mail if sender address is from an invalid domain

Please review: https://www.mailenable.com/documentation/10.0/Enterprise/SMTP_props_-Security.html

MORE INFORMATION

Here is an article that helps with testing the spam protection script service and explains a little more about its usage:Article https://www.mailenable.com/kb?ID=ME020493

Product:

MailEnable (All Versions)

Article:

ME020586

Module:

Other

Keywords:

spam,protection,filter,

Class:

TRB: Troubleshooting (Configuration or Environment)

Revised:

Tuesday, May 8, 2018

Author:

MailEnable

Publisher:

MailEnable