Email security involves a lot of buzzwords. What do they mean?
For a glossary of common email security terms, see Glossary of Terms Related to Spam Filtering Technology.

Back to top

What is ProSight Email Guard?
ProSight Email Guard is a spam filtering service and email security solution designed for small and mid-sized businesses. ProSight Email Guard combines the world-class cloud infrastructure and services of top data security companies with proven on-premises security gateway hardware to protect inbound and outbound email against spam, viruses and other email-borne threats and also offers outbound data protection via content filtering and encryption. In addition, ProSight Email Guard's centralized monitoring, management and reporting tools help you administer and troubleshoot your email system and define and enforce corporate email policy.

Back to top

What is the danger of email-based attacks?
About 70% of email is spam. 3% of emails have malicious attachments. 91% of successful hacks begin with email attacks. Spam lowers productivity. Viruses and advanced persistent threats (APTs) can steal and information and money, and shut down your network. Poorly secured email systems can violate government regulatory requirements and industry standards and expose you to litigation.

Back to top

What is the architecture of ProSight Email Guard's security solution?
ProSight Email Guard uses a hybrid architecture that includes cloud-based resources as well as on-premises email security gateway hardware. The Cloud Protection Layer prevents 95% of spam and the vast majority of viruses and other malware from ever reaching your security perimeter. The on-premises security gateway appliance provides deep, multi-level inspection for inbound threats including spam embedded within images. The security gateway also offers spam and virus protection, policy based content filtering, rate control, and cloud-assisted encryption for outbound email. In addition, ProSight Email Guard's architecture provides centralized web-based administration with comprehensive monitoring  and reporting plus options for role-based management delegation. A cloud-based Update Center enables zero-hour defense against newly discovered threats and keeps the Cloud Protection Layer and the security gateway up to date without management intervention. For a detailed discussion of ProSight Email Guard's architecture, see Email Guard technology and architecture.

Back to top

Why does ProSight Email Guard use a hybrid design with cloud services and on-premises hardware?
The combination of cloud-based and on-premises resources used by ProSight Email Guard provides better security, performance and resilience than would be possible with a one-dimensional architecture. For zero-hour security, the cloud-based Update Center provides 24x7x365 monitoring of worldwide threats, develops defenses, and distributes updates in real time to ProSight Email Guard's local security gateway appliance. In addition, the Cloud Protection Layer blocks the vast majority of spam and malware before it ever reaches your security perimeter, which enhances both security and system performance. Security and performance are also improved by the ability of the purpose-built local gateway to perform deep analysis of email traffic, including image scanning, before traffic reaches your email server. To stabilize performance, the local security gateway offers rate control for inbound and outbound email. For resilience, ProSight Email Guard's Cloud Protection Layer offers spooling. If your local data center goes down, spooling allows you to store all your inbound email in the cloud for up to 96 hours or direct it to an alternative destination while you fix the problem.

Back to top

What email-based threats does ProSight Email Guard block?
The ProSight Email Guard security gateway provides consecutive security filters that include Denial of Service (DoS) and security protection, rate control, IP reputation analysis, sender authentication, recipient verification, virus protection, user-specified policy enforcement, signature analysis, intent analysis, image analysis, Bayesian analysis, and spam rules scoring. This results in fast, comprehensive email protection against spam, viruses, spoofing, phishing, directory harvest, and spyware attacks. For a glossary of these and other terms used in email security, see Glossary of Terms Related to Spam Filtering Technology.

Back to top

What is Progent's role in delivering the ProSight Email Guard solution?
Progent can help you plan your ProSight Email Guard deployment, recommend security gateway hardware appropriate for your expected workloads and security requirements, configure your gateway, integrate ProSight Email Guard with Exchange Server or any other email platform, define and configure policies for inbound spam and outbound content filtering, set up and test outbound encryption, design and implement a high-availability solution that can include clustered security gateways, set up an efficient management system that takes advantage of delegated administration, and provide training, ongoing consulting support and troubleshooting services.

Progent's Microsoft-certified consultants can provide Microsoft System Center Operations Manager consulting so you can monitor your entire email and network infrastructure and resolve potential problems before they impact network productivity. Progent's Cisco-certified CCIE network consultants can help you design, build and troubleshoot a network infrastructure that supports both the on-premises and cloud-based resources that make up your ProSight Email Guard ecosystem. Progent's CISSP-certified cybersecurity consultants can help you plan and validate a cohesive security environment that protects your business against email-borne, web-based and internal threats and that complies with government regulations, industry standards, and your own corporate policies.

Back to top

Why is it important to filter outbound email?
Outbound filtering provides two major benefits: data loss protection (DLP) and reputation protection. DLP stops sensitive information from leaking out of your business via careless emails. Leaked data can result in regulatory infractions, identity theft, and loss of competitive advantage. It can also lead to litigation. The ProSight Email Guard security gateway includes pre-defined content filters such as HIPAA, credit card numbers, and Social Security Numbers. ProSight Email Guard also allows you to create custom content filtering policies covering specified keywords, categories, or character sets. Content filtering policies can be configured to block, quarantine or encrypt messages automatically.

Outbound filtering can also block spam and viruses sent by internal computers that have been compromised, which is a serious vulnerability in BYOD (Bring Your Own Device) environments. Organizations which allow spam and viruses to be sent out can be placed on block lists, or "blacklisted". This loss of reputation can hurt productivity and profits.

Back to top

Why can't my firewall stop spam or Directory Harvest Attacks?
Conventional firewalls offer little or no protection against spam or Directory Harvest Attacks. Inbound email often passes through the firewall to your email server without regard for message content, message size or address, creating an opportunity for spam and viruses to enter and making your email system vulnerable to directory harvesting.

Back to top

How does ProSight Email Guard support email encryption?
ProSight Email Guard utilizes a cloud-based Message Center to handle the encryption and delivery of outbound email. Administrators can establish multiple policies for determining which emails are automatically encrypted. These are then sent securely over TLS to the Message Center where they are encrypted using AES-256 and stored for retrieval. The Message Center sends the intended recipient a notice that includes a URL to visit in order to retrieve the encrypted email. Once establishing a password, the recipient can read the encrypted message. Any replies are also encrypted at the Message Center. In addition, Email Guard includes a plug-in for Exchange Server which lets users choose to encrypt individual emails. For more details about how ProSight Email Guard encrypts outbound email, visit Email Guard technology and architecture.

Back to top

Is ProSight Email Guard difficult to manage?
ProSight Email Guard includes a browser-based management portal designed to be easy to use for administrators in small and mid-size organizations. The portal's dashboard offers centralized monitoring and control of hardware, services, policies and configurations, and keeps extensive health and performance statistics on inbound and outbound email. You can easily track by day or hour the number of inbound and outbound messages blocked, quarantined, and rate controlled; the inbound messages tagged and allowed; and the outbound messages sent, redirected, and encrypted. Granular policy control includes delegated domain administration, delegated help desk role, and individual user policy control. For more information about ProSight Email Guard's cloud-based management features, see Email Guard technology and architecture.

Back to top

What email platforms are supported by ProSight Email Guard?
ProSight Email Guard works with any on-premises email platform but offers some enhanced features when used with Microsoft Exchange Server, such as the Outlook client encryption add-in and the Exchange LDAP Accelerator.

Back to top

How does ProSight Email Guard impact email performance?
The hybrid architecture of ProSight Email Guard leverages the massive scale of cloud-based resources and the power of purpose-built gateway hardware to off-load almost all the work of email protection from the email server. On-premises gateways are available in a variety of models that offer performance that ranges from entry level to enterprise class, and gateways can be clustered for improved performance, as well as higher availability. You can configure ProSight Email Guard to deliver the performance you need, and you can easily expand your deployment as your needs grow.

Back to top

How does ProSight Email Guard avoid blocking legitimate email through false positives?
A false positive is a legitimate email quarantined as spam. The default policy configurations in ProSight Email Guard have a false positive rate of 0.01%, which is low by industry standards. Administrators have options to adjust the aggressiveness of ProSight Email Guard's spam filtering with techniques such as threshold scoring, but the surest way to prevent false positives is to build "allow lists" or "whitelists" that specify legitimate senders. ProSight Email Guard permits users to control spam scoring, Bayesian analysis, and allow lists at the personal level.

Back to top

How can I get help now with email security?
If your organization needs online or onsite help with any aspect email security:
Call 800-993-9400 or visit Contact Progent.

Back to top

Also See:



An index of content::

  • 24 Hour At Home Workforce Consulting in Manaus - Integration Consulting Experts Manaus, AM Work at Home Employees Consultants - Manaus - Setup Consulting Services
  • 24-7 Microsoft SharePoint Server 2007 Troubleshooting San Diego-La Jolla, California Top Microsoft SharePoint Server 2010 Support Services San Diego, United States
  • 24-7 Rancho Cordova Ryuk Ransomware Settlement Negotiation Help Rancho Cordova-Sacramento Rancho Cordova Ryuk Ransomware Settlement Support Rancho Cordova-Sacramento, U.S.A.

  • Microsoft Security Firms GIAC Information Assurance
    GIAC Certified Consulting Services

    Global Information Assurance Certification was established in 1999 to certify the skill of IT security professionals. GIAC accreditations are acknowledged by companies and government organizations throughout the world including and the United States National Security Agency. Progent's GIAC-certified information assurance specialists offer help with any of the security capabilities addressed within GIAC certification such as auditing network security mechanisms, security incident handling, traffic analysis, web-based application security and security information and event management (SIEM) solutions.

  • 24/7 Edmonton Ransomware Locky Vulnerability Consultation Edmonton Edmonton Crypto-Ransomware WannaCry Preparedness Review Alberta
  • Adelaide Teleworkers Endpoint Management Systems Assistance Adelaide Adelaide Offsite Workforce Management Systems Expertise
  • Email Virus Signature Engineers
  • Alpharetta Locky Crypto-Ransomware Rollback Alpharetta Top Alpharetta Dharma Ransomware Recovery Alpharetta-Roswell, Georgia
  • ProSight Email Guard Spam Filtering Services Engineers
  • Amazon MWS programming Contract Programming Amazon Marketplace Web Service programming Programming Companies
  • At Home Workers Brisbane Consulting Experts - Cloud Integration Systems Guidance Brisbane CBD 24/7 Brisbane Telecommuters Cloud Integration Technology Consulting
  • Atlanta, Georgia Computer Support Companies Atlanta, GA Networking Company
  • Best Firewall Forensics Services Clearwater CISSP Security Audit Services Clearwater, Pinellas County
  • Beverly Hills Remote Workers Video Conferencing Technology Guidance Beverly Hills-Century City, California At Home Workforce Beverly Hills Assistance - Video Conferencing Technology Consulting Experts Beverly Hills-Century City, California
  • Biggest Teleworkers Recife Guidance - Solutions Consulting Services Pernambuco State of Pernambuco Work at Home Employees Consulting Experts in Recife - Integration Solutions Consulting Services
  • BlackBerry Wireless Computer Specialists BlackBerry BPS Consolidation Hartford Enfield Bristol Farmington
  • Brisbane Work at Home Employees Endpoint Security Solutions Consulting Services Brisbane, QLD Largest Remote Workers Brisbane Consulting and Support Services - Security Solutions Expertise Brisbane
  • Cabo Frio Spora Ransomware System-Rebuild Cabo Frio, Estado do Rio de Janeiro Emergency Cabo Frio Maze Ransomware Data-Recovery Cabo Frio, Rio de Janeiro
  • Cambridge Locky Ransomware Remediation Cambridgeshire, East of England St Neots Cambridge Phobos Crypto-Ransomware Data-Recovery
  • Castro Valley, CA Hayward DopplePaymer Crypto-Ransomware Forensics Analysis Hayward Crypto-Ransomware Forensics Hayward
  • Catalyst AP Management Online Support Catalyst 9105i Access Point IT Services
  • Columbia, Charleston, Rock Hill, SC Windows Services Windows Computer Consulting Company Columbia South Carolina
  • Computer Consultants Capitola Outsourcing Scotts Valley
  • Curitiba Teleworkers Help Desk Outsourcing Assistance Curitiba Curitiba, Parana 24-7 Curitiba Offsite Workforce Help Desk Call Center Solutions Guidance
  • Dayton Ohio Cisco Network Support Dayton Ohio Cisco Systems Consultant
  • Dynamics GP (Great Plains) Stockton Reseller - Migration Outsourcing Stockton California Stockton Microsoft Dynamics GP Upgrade Help Lodi, Escalon CA
  • Email Intent Analysis Consultant
  • Edmonton Teleworkers Integration Expertise Alberta Work at Home Employees Consulting nearby Edmonton - Infrastructure Guidance Edmonton

  • Specialists Microsoft SQL
    MS SQL Evaluation

    Progent's Microsoft-certified SQL Server application developers and DBAs can provide remote expertise to assist organizations of all sizes to build, administer, and maintain applications based on Microsoft's SQL Server platform and Microsoft's .NET framework. Progent's SQL Server experts offer help with any facet of the application life cycle in environments that range from small business or departmental databases to N-tier VLDB applications and data warehousing.

  • Email Anti-fraud Intelligence Consult Consultancy Cloud-managed Email Security
  • Emergency Emergency Phone Support Computer Consultation Hartford Connecticut 24-7 Support Organizations IT Outsourcing
  • Exchange Server 2016 Small Office IT Consulting Services Plano - Addison Small Business IT Outsourcing Services Exchange 2016 Plano, TX
  • Fedora Linux, Sun Solaris, UNIX Integration Panama City Mandrake Linux, Solaris, UNIX Computer Engineer Panama City
  • Fremont, CA, US 24 Hour Exchange Server 2019 Consulting Organization Microsoft Exchange 2016 Small Business Network Consultants Fremont Alameda County
  • Fresno Teleworkers Infrastructure Guidance Fresno County Fresno California Award Winning Fresno At Home Workers Integration Expertise
  • IT Staffing for IT Support Groups Maricopa County Arizona Mesa IT Staff Augmentation Help Mesa
  • Knoxville Locky Crypto-Ransomware Cleanup Knoxville, Knox County Knoxville NotPetya Ransomware Remediation
  • Email Quarantine Consultant Services
  • Largest Consulting Expertise for Network Service Organizations - Brooklyn - Transparent Short-Term Support Team Augmentation Brooklyn Consultants for IT Support Companies - Brooklyn - Transparent Temporary IT Support Expansion Brooklyn, NY
  • Lawrence, MA Network Help Lawrence, Massachusetts Computer Consultancy Firms
  • London Configuration Services London Consultancies
  • MS SQL Cybersecurity Organizations Specialists Microsoft SQL
  • Melbourne MongoLock Crypto-Ransomware Forensics Investigation Melbourne Conti Ransomware Forensics Investigation
  • Miami Snatch Crypto-Ransomware Forensics Investigation Miami Ryuk Crypto-Ransomware Incident Reporting South Florida

  • 24/7 Microsoft Certified Expert Sharepoint Services Software Consultants
    Small Business Computer Consulting Firms Microsoft Sharepoint Server 2013

    Progent's Microsoft-certified experts can provide network help and IT consulting services for Microsoft .NET Servers and programs and for Windows Server 2012, 2008 and 2003. Progent’s consulting professionals can show you how to design, deploy, maintain and manage the entire family of Windows .NET Servers including SQL Server, Microsoft ISA Server, Small Business Server, Microsoft Exchange Server 2013 and Exchange Server 2010, SharePoint Server, Hyper-V, Lync Server, Microsoft Project Server, and System Center Operations Manager.

  • Microsoft SQL 2014 Service SeaTac Airport SEA Microsoft SQL 2014 Network Consulting Tacoma
  • Minnetonka-Plymouth, America Minnetonka Telecommuters Endpoint Management Tools Consulting Minnetonka-Eden Prairie, Minnesota At Home Workforce Minnetonka Consulting Services - Endpoint Management Tools Consulting and Support Services
  • Network Support Consulting Milpitas Network Consulting Service Fremont
  • Oakdale, Riverbank CA Modesto Sodinokibi Crypto-Ransomware Removal Modesto, CA, U.S.A. Modesto Egregor Crypto-Ransomware Remediation
  • Oxford, Oxfordshire Remote Workers Consulting Experts near me in Oxford - Endpoint Management Solutions Expertise Teleworkers Consulting Services near Oxford - Endpoint Management Systems Consulting Experts Oxford
  • Panama City At Home Workforce Conferencing Solutions Expertise At Home Workers Panama City Consultants - Conferencing Solutions Expertise Panamá
  • Remote Workers Winston-Salem Consulting and Support Services - Management Solutions Assistance Greensboro Winston-Salem High Point Winston-Salem Piedmont Triad Winston-Salem Offsite Workforce Management Systems Consulting and Support Services
  • Remote Workforce Salt Lake City Consultants - Support Consulting Services Salt Lake City Work at Home Employees Assistance in Salt Lake City - Support Consulting Services Summit County Utah, US
  • Rio Grande do Sul Computer Tech BlackBerry BES Server BlackBerry BPS Business Computer Server Companies Porto Alegre, RS
  • Santos At Home Workers Video Conferencing Technology Expertise Santos, State of Sao Paulo Teleworkers Santos Consulting Experts - Conferencing Technology Expertise Santos, Sao Paulo
  • Security Inventory Consultant Information Risk Assessment Consulting Services
  • Small Business IT Outsourcing Services Anaheim, Yorba Linda Microsoft and Cisco Certified Anaheim, California Setup Service
  • Sorocaba At Home Workers Network Security Systems Assistance Sorocaba Teleworkers Expertise - Sorocaba - Network Security Solutions Consulting Experts Sorocaba, São Paulo

  • Microsoft SharePoint Server 2010 Support Outsourcing
    SharePoint Server 2010 Network Consulting

    Progent's Microsoft consultants can provide affordable online technical support and programming services to help your business to plan, implement, manage, and maintain SharePoint 2010 installations that can involve web sites that can function as intranets, extranets, document management applications, blogs, data marts, business analytics, enterprise-wide search engines, Visio-driven workflows, and other tools to promote and improve teamwork. Progent can help you combine SharePoint 2010 with MS SQL Server and with other data sources and with Microsoft's popular office productivity programs like Office Excel, Word, PowerPoint, and Visio. Progent can assist your business to migrate from previous releases of SharePoint or adapt a multi-vendor mix of web technologies into a unified and easy-to-manage SharePoint 2010 environment.

  • Sorocaba Immediate Sorocaba Conti Crypto-Ransomware Settlement Negotiation Help Sorocaba Nephilim Crypto-Ransomware Settlement Negotiation Services Sorocaba
  • Spokane At Home Workforce Network Security Solutions Consulting Spokane Washington 24-Hour Spokane Remote Workforce Endpoint Security Systems Consulting Experts Eastern Washington Spokane
  • Stamford-Greenwich Outsourcing Firm Stamford-Milford Network Design Consultant
  • Email Anti-fraud Intelligence Professional
  • Technical Support Services Slackware Linux, Solaris, UNIX Debian Linux, Solaris, UNIX Integration Support
  • Technical Support Slackware Linux, Sun Solaris, UNIX Debian Linux, Solaris, UNIX Network Engineer Orlando, FL
  • Telecommuter Services Onsite Technical Support Technology Consulting Services Call Desk for Remote Workforce
  • Telecommuters Broomfield Expertise - Backup Systems Consulting Services Broomfield, CO Broomfield-Louisville, Colorado, US Remote Workers Consulting Experts - Broomfield - Backup/Recovery Technology Consulting Services
  • Thousand Oaks, Conejo Valley Remote Workers Expertise - Thousand Oaks - Endpoint Management Tools Consulting Experts Thousand Oaks Remote Workers Thousand Oaks Assistance - Management Solutions Consultants
  • ProSight Email Zero Hour Protection Specialists
  • Top Quality Configuration Microsoft Dynamics GP ERP Top Ranked Technical Support Dynamics GP/Great Plains
  • Top Ranked Belo Horizonte Dharma Crypto-Ransomware Settlement Help Belo Horizonte Belo Horizonte Nephilim Ransomware Settlement Expertise
  • Top Ranked Microsoft Network Consultant Exchange 2010 Migration Professional Microsoft Exchange 2010 Upgrade
  • Top Wilmington Small Office Computer Consultants Wilmington IT Consulting Firm
  • Troubleshoot SQL Server Garland Centerville IT Service Provider Microsoft SQL Server 2016 Garland, TX
  • Tucson Egregor Ransomware Recovery Tucson Pima County, USA Tucson Avaddon Ransomware Mitigation
  • Walnut Creek Work at Home Employees Cloud Solutions Consulting Danville, CA Work at Home Employees Walnut Creek Consulting and Support Services - Cloud Solutions Consultants Lafayette, CA
  • Windows Server 2016 Networking Consultancy Silicon Valley Windows Server 2019 Computer Tech Fremont, CA, USA
  • Windows Server 2016 Upgrade Vancouver Integration Specialists Microsoft Windows Server 2016 Vancouver
  • Work at Home Employees Assistance nearby San Francisco - Backup/Recovery Technology Assistance San Francisco Bay Area San Francisco At Home Workers Backup/Recovery Systems Expertise SF Bay Area
  • Work at Home Employees Chattanooga Consulting - Call Desk Augmentation Consulting Services Chattanooga Chattanooga East Ridge Chattanooga At Home Workers Help Desk Call Center Solutions Expertise
  • Work at Home Employees Knoxville Consulting Experts - Cloud Technology Consulting Services Knoxville, Knox County, United States Knoxville Teleworkers Cloud Integration Solutions Consultants Knoxville Farragut Oak Ridge

  • Great Plains Migration Network Consulting
    Support Dynamics GP Power BI

    Progent’s Microsoft certified consultants offer a range of consulting services for Microsoft Dynamics GP (formerly Great Plains). Dynamics GP/Great Plains is a financial and business analysis tool based, like all Microsoft accounting solutions, on the scalable and familiar foundation of Microsoft Windows technology. Microsoft Dynamics GP offers a cost-effective tool for controlling and integrating accounting, e-commerce, supply chain, manufacturing, project accounting, field service, and HR. Dynamics GP is easy to install and configure, and with its modular design you can purchase only the functions you currently require, with the ability to add users and increase functionality in the future. Progent’s Microsoft Dynamics GP consulting experts can help you deploy, customize and manage the current release of Dynamics GP or upgrade efficiently from an older release.

  • Work from Home Employees Expertise near Wichita - Backup Systems Consulting and Support Services Wichita, U.S.A. Offsite Workforce Assistance nearby Wichita - Data Protection Technology Consulting and Support Services Wichita, Sedgwick County
  • Work from Home Employees Guidance in São Paulo - Call Desk Augmentation Guidance Sao Paulo State Sao Paulo Offsite Workforce São Paulo Consulting Services - Help Desk Call Center Solutions Consulting Experts

  • Microsoft Hyper-V 3.0 Virtual Machines Integration
    Microsoft Hyper-V 3.0 Network Consulting

    Widows Server 2012 R2 Hyper-V advances the power of server virtualization in key areas including secure multitenancy, agile network infrastructure, cloud readiness, scalability and performance, and fault tolerance. Progent's Microsoft-certified consulting experts can help your company to take advantage of Hyper-V to install and maintain virtual servers to reduce IT expenses and enhance availability.

  • Wyandotte County Kansas Remote Workforce Kansas City Assistance - Cloud Solutions Consultants At Home Workers Consulting and Support Services near me in Kansas City - Cloud Integration Solutions Consulting Experts

  • © 2002-2021 Progent Corporation. All rights reserved.