The attachments tab allows you to control what file attachments Security Bulldog will allow through.

Instead of only removing known viruses, Security Bulldog can remove any attachments that could potentially harm your computer.

Attachment Blocking
This control allows you to determine what attachments Security Bulldog will block.
Security Bulldog will add a note to the email inform you any time it has deleted an attachment.
In the event that you want an attachment that was blocked you can retrieve the original email with attachments intact with a simple click.

The choices are:

• Block All Attachments
  Choose this option to have Security Bulldog remove all attachments from your incoming email.
  While this option is the most secure, it will block even files like plain text files that cannot be harmful to your computer.
  This option is only recommended if you are sure that you do not want any attachments of any kind.
  
  
• Block Suspicious Attachments (recommended)
  If this option is chosen Security Bulldog will block file types that are very dangerous like executables.
  However, in addition to this it will block files that are not generally considered dangerous but could theoretically be hazardous.
  An example of this is HTML documents.
  The document it's self may not be dangerous but it may cause your web browser to download something dangerous.
  Security Bulldog will also examine the email format for anything that may lead to a misleading or ambiguous interpretation of the attachment.
  An example of this is a file with two file extensions like "ReadMe.txt            .exe".
  Another example is a file with more than one file extension specified in different places or who's MIME type differs from it's file extension type.
  
  
• Block Dangerous Attachments
  Choose this option if you would like to block only files that are known to be dangerous.
  E.g. .exe, .pif, .hta, cpa, ...etc.
  You can include or exclude files from this list by editing the danger level using the View File Type Information... dialogue.
  
  
  
• Block No Attachments
  This option will turn off all attachment screening.
  All attachments will be allowed through regardless of their potential to harm your computer.
  This option is not recommended.

View File type information
Security Bulldog comes with a built in list of over 7,000 file types, what they contain and the risk level associated with them.
You can edit this list to block or unblock any file type you like.
To ensure that Security Bulldog never blocks a file you can set it's risk level to "Low".
If you would like Security Bulldog to block a file set it's risk level to "Very High".
If the risk level is set to something in-between Security Bulldog will only block it if the Attachment blocking level is set to "Block Suspicious Attachments".