Introduction

You may use WFilter to block sending/receiving emails, block sending attachments and filter email accounts.

1. Block sending attachments
2. Block web-based emails
3. Enable black/white list for local email senders

1. Block sending attachments

This feature can block sending of emails with attachments via SMTP protocol.

1.1

Figure 1

1.2 Set a proper "Level Name" and "Level Desc", check "Block sending emails with attachment(s)", as in Figure 2:

Figure 2

1.3

Figure 3

1.4 Emails with attachment(s) will be blocked, as in Figure 4:

Figure 4

Figure 5

2. Block web-based emails

This feature will block web-based emails.

2.1

Figure 6

2.2 Set a proper "Level Name" and "Level Desc", check "Block Web Emails", as in Figure 7:

Figure 7

2.5

Figure 8

2.6 Web-based email websites will be blocked, as in Figure 9:

Figure 9

3. Enable black/white list for local email senders

This black/white list can filter email sender address for outgoing emails. For example, you can restrict users to send emails only using company emailbox.

3.1

Figure 10

3.2 Set a proper "Level Name" and "Level Desc", check "Enable black/white list for local email senders", as in Figure 11:

Figure 11

3.3 Add certain email accounts into a black list, as in Figure 12:

Figure 12

3.4

Figure 13

3.5 Certain email accounts will be blocked from sending emails, as in Figure 14:

Figure 14