---
title: "The Functions & Benefits Of O365 Spam Filter | DuoCircle"
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---

Content 

#  The Functions & Benefits Of O365 Spam Filter 

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## The Functions & Benefits Of O365 Spam Filter

[Spam Filtering - Sign Up](/email/spam-filtering)

_The O365 spam filter is a unique feature that helps to detect spam in Office 365._ The various spam filtering techniques help to prevent malicious actors from sending spam to your email. Spam filtering is crucial in the computing environment of a big organization, as spam could easily jeopardize the organization’s valuable information assets – here’s when tools like the **Office 365 spam filter** come into picture!

![office 365 spam filter best practices](https://media.mailhop.org/duocircle/images/2020/07/email-spam-filtering-service-1.png) 

### Functions of O365 Spam Filter

The [O365 works](https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/anti-spam-protection?view=o365-worldwide) by detecting, differentiating, and blocking the spam emails as described below.

#### Differentiates useful and unwanted emails

_The primary purpose of a spam filter is to categorize emails into a white list and blacklist._ The filters allow all the white list email messages to get through to the receiver’s mail inbox. On the other hand, emails that fall in the blacklist are kept away from the user’s mailbox. The user either allows the **spam filter** to delete them or block them. Usually, spam filters rely on a set of protocols, where the user specifies the fate of such [blacklisted emails](https://www.campaignmonitor.com/blog/email-marketing/2019/07/email-blacklists-101-what-you-need-to-know/).

#### Blocks unwanted email messages

The program is capable of detecting suspicious content in the incoming emails. Subsequently, _the spam filter may either delete such emails or block them_.

### Benefits of O365 Spam Filter

One can find the following benefits in an O365 spam filter.

#### Enhances the security of crucial information

_Spam filters help to detect spam emails automatically and prevent them from reaching the recipient_. Consequently, this protects them from the immeasurable damage to one’s information assets. Filtering is not about merely blocking. There are other [Office 365 spam filter advanced options](/content/office-365-spam-filter/office-365-spam-filter-advanced-options) too if users want more **robust filtering** of emails.

#### Saves user time

Most people receive more spam emails than legitimate messages. _The spam filter eliminates spam and helps the user only to access legitimate email messages_. It saves much of the user’s time spent in sorting emails.

#### Helps to safeguard user’s reputation and privacy

_A malicious email exposing confidential and sensitive customer information can jeopardize the reputation of an otherwise healthy organization_. Employing [Office 365 spam filter best practices](/content/office-365-spam-filter/office-365-spam-filter-best-practices) can protect an organization from falling prey to such unfortunate incidents.

#### Reports the senders of spam messages

Advanced **spam filtering software** reports spam to email providers. _Reporting helps to ensure that the providers take action before the issue gets out of hand_. Email providers have several professional workers who investigate a report and take immediate steps.

#### Helps to store only the wanted emails

The [Office 365 spam filter](/content/office-365-spam-filter) programs do not allow any unwanted email to reach the user’s inbox. _Only the legitimate email messages get into the user’s mailbox_.

#### Saves email storage space

The unnecessary spam emails can take up much space in the inbox. Email filtering helps to delete such emails. _Advanced spam filtering applications delete the emails automatically_.

#### The system is capable of storing unwanted email

Sometimes, genuine emails may be marked as spam by mistake. Such emails can be retrieved from trash later if required. Also, some emails, though spam, may not be malicious and may need to be extracted for some information later. _The O365 spam filtering setup keeps such emails in isolation instead of deleting them right away_. They can be retrieved later if required.

_The O365 spam filter has numerous benefits for any user in efficiently managing spam and malicious emails coming to the inbox_. One can benefit from the [outbound spam Office 365](/content/office-365-spam-filter/outbound-spam-office-365) features, too, to ensure no **outbound emails** are produced as a result of any malicious intrusion. Understanding all the useful features of **O365 spam filtering** and appropriately employing them can provide the users with an extremely spam-free email communication experience. _Organizations and individuals alike can highly benefit from the features of O365 spam filtering_. Using [Office 365 spam filter whitelist](/content/office-365-spam-filter/office-365-spam-filter-whitelist), a user can only allow emails coming from approved senders. The user can choose to delete the blacklisted emails or block them entirely automatically. Thus the spam filters give the user the freedom to eliminate all the unwanted or malicious incoming email messages and protect the integrity, confidentiality, and availability of their valuable information assets.

![office 365 spam filter](https://media.mailhop.org/duocircle/images/2020/07/enterprise-spam-filters-1.png) 

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