Pop3 Proxy: Proxy Limits - Watchguard Firebox X15 User Manual

POP3 proxy: Proxy limits

On the POP3 Settings tab, you can adjust timeout and line length limits. This stops the POP3 proxy from using
too many network resources and can prevent some types of attacks. You can also customize the deny
message that users see when an email message they try to download from the email server is blocked. For a
complete description of the actions the POP3 proxy takes and the results your users see when the POP3 proxy
finds and blocks content, see the FAQs for the Edge at http://www.watchguard.com/support/faq/edge.
Timeout
This setting limits the number of seconds that the email client tries to open a connection to the email
server before the connection is closed. This prevents the proxy from using too many network
resources when the email server is slow or cannot be reached.
Maximum email line length
This setting prevents some types of buffer overflow attacks. It is unlikely that you will need to change
this setting unless it prevents access to legitimate mail
Deny Message
In the Deny Message field, you can write a custom plain text message that will appear in the recipient
email when the proxy blocks that email. You can use these variables:
%(type)%
Puts the content type of the email.
User Guide
Proxy Settings
139