How to monitor employee emails usage in business networks?

An email client receives emails via POP/IMAP protocols, sends emails via SMTP protocol. In today, SSL encryption is widely used for email clients. There are two kinds of SSL encryption: “SSL Connection” and “STARTTLS”.

WFilter Enterprise is an internet content monitoring and filtering software program, which can monitor a whole network from one pc, without the need to install any client agent.

 

With WFilter, you can monitor employee emails usage of  plain SMTP/POP/IMAP.

1. Click “Emails” number in “Online Users”.

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2. You will see a list of sent/received emails.

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Click the “Subject” link will be able to check the email content.

3.  Query email history in “Query History Logs”.

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Please note that “WFilter Enterprise” can only monitor plain pop3/smtp/imap emails. To monitor SSL emails, you need to check SSL Email Inspection feature of “WFilter NG Firewall“.