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This Article Applies to:
- Avast Business CloudCare
Mail Shield checks incoming and outgoing email messages for viruses and links to malicious websites. This only applies to messages handled by mail management software installed on your computer, such as MS Outlook. If you access your web-based email account via an Internet browser, your devices are protected by other Shields.
We do not recommend you install this component on a server OS that is also running Microsoft Exchange. The Exchange and Anti-spam components handle Exchange-level filtering and will conflict with this component.
For Windows configuration options, see below. For macOS configuration options,
Main Settings Tab
Inbound mail: choose whether inbound (POP3, IMAP4) email is scanned
Outbound mail: choose whether outbound (SMTP) email is scanned
Newsgroup messages: choose whether newsgroup messages (NNTP) are scanned
Configure notes added to emails or additional options for MS Outlook.
General: choose whether to insert notes into clean or infected messages, both incoming and outgoing, and/or to add a warning to the subject line of infected emails
MS Outlook only: choose whether to show splash screen, scan files when attaching to email, and/or to scan archived messages when opening (or just unread ones)
SSL Scanning Tab
Choose whether or not to scan SSL connections.
Control what actions are taken by Avast when a virus, potentially unwanted program (PUP), unwanted tool, or suspicious file is detected.
Main Action/First action to try: Select the first action you want your Antivirus to take (for example, if it will first attempt to fix or quarantine the threat, or delete it immediately).
Notification Options: Choose whether to show notifications when
Processing of infected archives: Choose whether to only remove the packed file from the archive (and if that fails, do nothing), remove the packed file from the archive (and if that fails, remove the entire archive), or to remove the entire archive.
Configure which archive (packer) files
You can select All packers, or specific packer files from the extensive list by checking the boxes.
Adjust the sensitivity of the
Heuristics Sensitivity: Heuristics enable Antivirus to detect unknown malware by analyzing code for commands that may indicate malicious intent. The default setting is Normal. With higher sensitivity, Antivirus is more likely to detect malware, but also more likely to make false-positive detections that incorrectly identify files as malware. Code emulations unpack and test suspected malware in an emulated environment where the file cannot cause damage to devices. Use code emulation is enabled by default
Sensitivity: Choose to test whole files, which will cause the scan to be slower but more extensive
PUP and suspicious files: Choose whether or not to scan for Potentially Unwanted Programs (PUPs)
For Antivirus versions 21.5 and newer, you can also choose whether to scan for potentially unwanted tools.
Report File Tab
Customize the content of the shield-specific scan report file, such as which items are included, the file name, and file type. The report is saved in
C:\ProgramData\Avast Software\Avast\report (Windows 7 and higher).
Settings: choose whether to enable IPv6, scan secured connections, report potentially unwanted programs, mark mail headers, and/or remove infected attachments.
Exclusions list: configure the list of URLs that are not scanned by Mail Shield.
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