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  • FOPE (Forefront Online Protection for Exchange)

    FOPE (Forefront Online Protection for Exchange) is a discontinued cloud service for organizations using Exchange Server or Exchange Online. 

  • Microsoft Exchange Online Protection (EOP)

    Microsoft Exchange Online Protection (EOP) is an email cloud service that provides end users with protection against spam and malware. 

  • Microsoft Exchange 2013 Poison Message Queue

    Microsoft Exchange 2013 Poison Message Queue is a queue that exists specifically to hold messages deemed harmful to the deployment after a transport server or service failure. 

  • edge transport server

    Edge transport server is an Exchange Server 2010 role that helps route Internet email as well as protect the Exchange organization from viruses and spam. 

  • tarpitting

    Tarpitting is the practice of slowing the transmission of e-mail messages sent in bulk, as a means of thwarting spammers. The intent is to maintain a high quality of service for legitimate users while making the sending process impractical for spamm... 

  • throttled data transfer

    Throttled data transfer, also known as data transfer throttling or lean data transfer, is the deliberate regulation of the data transfer rate in a communications system... (Continued) 

  • backscatter spam

    Backscatter spam, also called misdirected bounce spam or NDR spam, is a strategy for sending unsolicited email messages that takes advantage of the fact that certain types of mail transfer agent (MTA) programs return the entire message to the sender ... 

  • Vouch by Reference (VBR)

    Vouch By Reference (VBR) is a protocol for adding third-party certification to email. The first part of the protocol requires the sender to add information to their email header by creating a field called VBR-Info. 

  • KnujOn

    KnujOn is an interactive Web-based spam reporting service. Through persistent policy enforcement, KnujOn reduces the value of unsolicited bulk email (UBE) by both eliminating transaction platforms and increasing the operational costs for spammers. (C... 

  • greylist (or graylist)

    A greylist (also spelled graylist) is a list of e-mail addresses or domain names that a spam filter uses to identify suspected spam. If a message arrives from an address or domain on the list, it will be quarantined and then delivered to the subscri... 

  • See more Definitions on Spam and virus protection
About Spam and virus protection

Want to block spam and stop viruses before they reach your Exchange servers and Microsoft Outlook email clients? Find the spam and virus protection software tools, tips and tutorials you need here.