About basic management mode : AntiSpam submenu features : Configuring outgoing actions
Configuring outgoing actions
The Outgoing Action tab lets you to select what actions the FortiMail unit takes against spam and virus-infected email going to a domain that is not protected by FortiMail.
 
For more information on determining directionality, see “Incoming versus outgoing email messages” and “Incoming versus outgoing SMTP connections”.
To configure outgoing actions
1. Go to Settings > AntiSpam > Outgoing Action, and configure the following:
 
GUI item
Description
AntiSpam Actions
 
Tag email’s subject line
Enable and enter the text that will appear in the subject line of the email, such as “[spam]”, in the With value field. The FortiMail unit will prepend this text to the subject line of spam before forwarding it to the recipient.
Many email clients can sort incoming email messages into separate mailboxes, including a spam mailbox, based on text appearing in various parts of email messages, including the subject line. For details, see the documentation for your email client.
 
Reject
Enable to reject the email and reply to the SMTP client with SMTP reply code 550.
 
Discard
Enable to accept the email, but then delete it instead of delivering the email, without notifying the SMTP client.
AntiVirus Action s
 
Replace virus body
Indicates that the FortiMail unit will replace infected attachments with a replacement message. You can customize replacement messages. For more information, see “Customizing GUI, replacement messages and email templates”.
This option cannot be disabled, but does not apply if you also enable Reject or Discard.
 
Reject
Enable to reject infected email and reply to the SMTP client with SMTP reply code 550.
 
Discard
Enable to accept infected email, but then delete it instead of delivering the email, without notifying the SMTP client.
See also 
Configuring outgoing mail protection