How to Use Email Control Policy in Policies - AnySecura Manual
This guide will help you understand how the AnySecura Email Control Policy works to protect sensitive information from leaving your organization via email. You'll see how it carefully filters outgoing messages without disrupting normal communication.
We'll then walk through the specific attributes you can configure, like sender, recipient, and attachment rules, to build a policy that fits your security needs. By the end, you'll know how to set up practical rules, such as blocking emails with confidential attachments, using the tools in the AnySecura Policies module.
The email control policy prevents the leakage of sensitive corporate information via email while allowing normal email usage. It applies only to outgoing emails; incoming emails cannot be controlled. Currently, it does not support controlling webmail or Lotus email sending.
| Attribute | Description |
|---|---|
| From | Controls the sender's email address. Supports wildcards and multiple addresses separated by commas (,) or semicolons (;). |
| To | Controls the recipient's email address, including CC and BCC. Input rules are the same as for Sender. |
| Match Single Recipient Only | If checked, the policy applies if at least one recipient matches; if unchecked, all recipients must match. |
| Subject | Controls the email subject. Input rules are the same as for Sender. |
| Has Attachment | Controls whether emails with attachments are affected. If checked, only emails with attachments are controlled; if unchecked, all matching emails are affected, regardless of attachments. |
| Attachment | If "Contains Attachment" is checked, specify attachment names to control. Input rules are the same as for Sender. |
| Email Size (>=KB) | Controls emails by size. Default is 0 (all emails). Emails equal to or larger than the specified size are affected. |
Policy Example 1
To prevent confidential corporate information from being sent via email, attachment control can be applied. Emails containing attachments with specified keywords in their filenames will be blocked.
Policy Setup: Mode: Block → Has Attachment → Attachment: e.g., *keyword*
Emails sent from the client containing attachments with filenames that include "keyword" will be blocked.
Policy Example 2
Some organizations may restrict outgoing emails to approved internal accounts, blocking all other senders. This ensures proper email usage and tighter control over external communications.
Policy Setup:
① Create a policy: Block All Emails
② Create a policy: Allow → From: e.g., *@teclink.com.hk
Only emails sent from addresses containing @teclink.com.hk will be allowed.