AnswerGFI MailEssentials can be configured to block messages that contain remote images.
When this feature is enabled, GFI MailEssentials blocks all messages that contain remote images with a minimum HTML body size of 512 characters or according to the value configured.
To configure these options follow the steps below:
- Login to GFI MailEssentials with administrative credentinals
- Go to Anti-spam > Anti-Spam Filters > Header Checking > General
- Select Check if email contains remote images only.
- (Optional) Edit the number of characters allowed in the textbox Bytes.