--- title: "How Outbound Spam Office 365 Filtering Works To Keep Your Email Reputation Intact | DuoCircle" description: "Join the thousands of organizations that use DuoCircle Find out how affordable it is for your organization today and be pleasantly surprised.Interested in" image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/content/office-365-spam-filter/outbound-spam-office-365/" --- Content # How Outbound Spam Office 365 Filtering Works To Keep Your Email Reputation Intact Join the thousands of organizations that use DuoCircle Find out how affordable it is for your organization today and be pleasantly surprised.Interested in [ Talk to an Expert → ](/contact/) [ See what we make ](/products/) ## How Outbound Spam Office 365 Filtering Works To Keep Your Email Reputation Intact [Spam Filtering - Sign Up](/email/spam-filtering) In this digital era where malicious actors are hyperactive, _it has become essential for all businesses and individuals to have safeguards_ such as **outbound spam Office 365** filter to ensure that spam email is not sent out to anyone. _These filters can efficiently prevent outbound spam messages from leaking through to prospective recipients and affecting the business reputation_. Let’s see how the outbound spam Office 365 filtering feature works. ![spam filter service](https://media.mailhop.org/duocircle/images/2020/07/spam-filtering.png) ### Outbound Spam Office 365– How Does It Work? Inbound and outbound messages are assigned with an [SCL](https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/spam-confidence-levels?view=o365-worldwide) (Spam Confidence Level), depending on the likelihood of the message being spam. Depending on the SCL, it will assign specific **outbound email** messages as spam. _The outbound spam Office 365 filter then routes the message through a high-risk delivery pool_. Alternatively, the message is bounced off and not delivered. The sender receives a delivery status notification about the inability to deliver the email. Similarly, _the SCL also indicates whether an inbound email message is spam or not_. The **O365 spam filter** directs the incoming spam email to the Junk Email folder instead of the Primary Inbox. ### Office 365 Spam Filter Best Practices To Avoid Having Genuine Emails Marked As Spam _SCL can prove to be a double-edged sword at times_. It can classify good messages as spam (false positives) or even deliver **outbound spam emails**. The following [Office 365 spam filter best practices](/content/office-365-spam-filter/office-365-spam-filter-best-practices) can help avoid both scenarios. - One should report misclassified messages to Microsoft. - Examining the **anti-spam message headers** can provide the information on how it skipped the [Office 365 spam filter](/content/office-365-spam-filter). - Pointing the MX record to Microsoft 365 ensures quality spam email filtering. - Email authentication is also a suitable method. - One should also verify the bulk email settings. - Prepare an [Office 365 spam filter whitelist](/content/office-365-spam-filter/office-365-spam-filter-whitelist) to ensure that genuine emails never get filtered as spam. These practices are ideal in the case of automatic [O365 spam filter](/content/office-365-spam-filter/o365-spam-filter) settings. However, if any spam emails still get through, _one can use [Office 365 spam filter advanced options](/content/office-365-spam-filter/office-365-spam-filter-advanced-options) to maintain a more aggressive spam filtering approach_. The general user cannot activate these settings. Admins can mark messages as spam, depending on the message’s specific properties. Thus, the user gets total protection from inbound and outbound spam emails. Virus protection and **spam filtering** features are automatically available on inbound and outbound email messages by [Microsoft EOP](https://practical365.com/exchange-online/first-steps-configuring-exchange-online-protection/) (Exchange Online Protection). _This anti-malware and anti-spam service are also included in Office 365 as essential safeguards_. Admin set up is not necessary for the outbound spam Office 365 filter. Anyone can configure the settings depending on the organization’s needs to protect the confidentiality, integrity, and availability of valuable information assets and safeguard one’s reputation. ![office 365 spam filter](https://media.mailhop.org/duocircle/images/2020/07/spam-filter-service-providers.png) ##### Join the thousands of organizations that use DuoCircle --- Find out how affordable it is for your organization today and be pleasantly surprised. [Spam Filtering - Sign Up](/email/spam-filtering)Interested in our Partner Program for MSPs and VARs? Visit Our [MSP Partner Program](/msp-partner-program). ## Ready to talk? Same-day response from someone technical. We tell you yes or no quickly. If yes, we get to work. [Talk to an Expert→](/contact/)[See what we make](/products/) ```json {"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}],"sameAs":["https://www.linkedin.com/company/duocircle","https://x.com/duocirclellc","https://www.facebook.com/duocirclellc","https://www.g2.com/products/phish-protection-by-duocircle/reviews","https://github.com/duocircle","https://www.crunchbase.com/organization/duocircle-llc"],"contactPoint":{"@type":"ContactPoint","contactType":"customer support","url":"https://support.duocircle.com"},"knowsAbout":["Email Security","Email Authentication","SPF","DKIM","DMARC","Phishing Protection","Spam Filtering","SMTP Relay","Email Deliverability","Email Forwarding"]} ``` ```json {"@context":"https://schema.org","@type":"WebSite","name":"DuoCircle LLC","url":"https://www.duocircle.com","description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","publisher":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]}} ``` ```json [{"@context":"https://schema.org","@type":"WebPage","name":"How Outbound Spam Office 365 Filtering Works To Keep Your Email Reputation Intact","description":"Join the thousands of organizations that use DuoCircle Find out how affordable it is for your organization today and be pleasantly surprised.Interested in ","url":"https://www.duocircle.com/content/office-365-spam-filter/outbound-spam-office-365/","speakable":{"@type":"SpeakableSpecification","cssSelector":[".page-answer",".duo-rich-text p:first-of-type"]},"dateModified":"2023-08-07T13:59:59.000Z","datePublished":"2020-08-18T14:34:16.000Z"},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"DuoCircle","item":"https://www.duocircle.com/"},{"@type":"ListItem","position":2,"name":"How Outbound Spam Office 365 Filtering Works To Keep Your Email Reputation Intact","item":"https://www.duocircle.com/content/office-365-spam-filter/outbound-spam-office-365/"}]}] ```