Articles

• Configuring Directory Harvesting

  Overview Directory harvesting attacks occur when spammers send emails to randomly generated email addresses and while some email addresses may match real users, the majority of these messages are inva...

• Directory Harvesting Not Filtering Spam

  Overview Directory Harvesting is not filtering any spam. Neither the Dashboard nor the Statistics page shows Directory Harvesting filtering of any or just a few emails. Also, the Directory Harvesting ...

• Directory Harvesting Module Actions

  Overview The Directory Harvesting feature in GFI MailEssentials blocks emails addressed to non-existent recipients in your organization. This means that, in most cases, no mailbox is available for the...

• Lookup in Directory Harvesting (LDAP) Not Finding Email Enabled Groups in Lotus Environments

  Overview When trying to find a user in Directory Harvesting via LDAP in Lotus directory, the email enabled groups are not found.   Information Environment GFI MailEssentials 2014 R2   Process Upgrade ...

• Spam filtered by Directory Harvesting is not appearing in the dashboard or logs

  Answer PROBLEMDirectory Harvesting is enabled in SMTP mode and nothing is showing up in the Dashboard or in the Directory Harvesting Logs. ENVIRONMENT GFI MailEssentials Microsoft Exchange All support...

• Legitimate emails being blocked by Directory Harvesting ( ONLY)

  Answer PROBLEMLegitimate emails are blocked by Directory Harvesting. ENVIRONMENT GFI MailEssentials  SOLUTION Check to make sure that the domain name is entered properly in the General Settings. Usual...

• Determining why Directory Harvesting blocked or allowed a message

  Overview This Directory Harvesting Anti-Spam plug-in checks if the SMTP recipients of incoming mail are real users or the result of a directory harvesting attack. In this article, you will learn how t...

• GfiMeSmtpAgent timing out due to Directory Harvesting

  Versions / Builds AffectedVersion 20.1 (build 20160420) StatusOpen Problem SummaryGfiMeSmtpAgent timing out due to Directory Harvesting TT / JIRAIDGFIME-909 How to IdentifyCustomer will approach us st...

• Error: Could not load file or assembly 'LDAPUserDBLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=4637077a7a2c17fb' or one of its dependencies. when trying to set up LDAP in Directoy Harvesting (DH)

  Versions / Builds AffectedGFI MailEssentials 2015 StatusResolved TT / JIRAID2635 How to IdentifyWhen trying to enable Directory Harvesting and configure LDAP, the following error is thrown: 'LDAPUserD...

• Error: 'PERM_FAILURE: SMTP Error (state 9): 550 5.1.1 User unknown' when sending emails to the list server

  Overview GFI MailEssentials is installed on a gateway machine. When users are sending emails to the list server, all emails are rejected with an error similar to the following: PERM_FAILURE: SMTP Erro...