In an aim to increase online security, SU has multiple policies in place for email.
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Checking Your Junk and Quarantine Folders
A quarantined email has been through Microsoft's filtering system that flags it as a potential threat to SU network security. The email filtering system then moves it to a quarantine area instead of delivering it to your inbox. Outlook blocks the sending and receiving of certain types of files (such as .exe and certain database files) as attachments. If you need to send one of these file types to an email recipient, we recommend using OneDrive and sending the recipient a link to the file instead. See Microsoft Office 365 Outlook Email Quarantined File Extensions for a complete list. Quarantined emails are still accessible through the Quarantine folder within your inbox. It acts very much like the Junk folder. If you are expecting an email from someone and it doesn't come through, it could be because it was a high-level quarantined message and will need further assistance from the Help Desk. Please create a ticket to have support technicians review high-level quarantines for the email and they can restore it to your inbox if has been received. If you find that a certain email sender is being sent to quarantine often, you can add them to your Safe Senders list within Outlook to alleviate additional steps to retrieving their messages. Junk vs Quarantine |
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Messages containing the following attachment types are automatically quarantined in Exchange Online: .ace, .ani, .app, .docm, .exe, .jar, .reg, .scr, .vbe, .vbs |
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In Microsoft 365 organizations with mailboxes in Exchange Online or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes, inbound messages go through spam filtering in EOP and are assigned a spam score. That score is mapped to an individual spam confidence level (SCL) that's added to the message in an X-header. A higher SCL indicates a message is more likely to be spam. EOP takes action on the message based on the SCL. Things that are known to affect the SCL score to mark them as Junk/Spam are email with no content and a URL only, spoofing domains, using a URL with IPs instead of DNS names, text with numbers instead of letters, embedding images with URLs and no context, and attachment types. |
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The following retention policies are applied to everyone
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