How To Filter Emails In Outlook : Organize Inbox With Rules

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Organizing your inbox begins with applying filters to sort incoming messages automatically. If you’ve ever wondered how to filter emails in outlook, you’re in the right place. Filters help you manage clutter, prioritize important messages, and save hours each week. Let’s walk through the simplest ways to set them up, step by step.

Outlook offers multiple ways to filter emails—from basic rules to advanced conditions. You can sort by sender, subject, keywords, or even attachment types. The best part? Once set, filters run silently in the background. No manual sorting needed.

How To Filter Emails In Outlook

Before diving into the steps, understand the core tool: Rules. Rules are automated instructions that tell Outlook what to do with incoming emails. You can create rules from scratch or use built-in templates. Let’s start with the easiest method.

Creating A Basic Filter Using Rules

Open Outlook and go to the Home tab. Look for the Rules button in the Move group. Click it and select Manage Rules & Alerts. A new window opens.

  1. Click New Rule.
  2. Choose a template. For example, “Move messages from someone to a folder.”
  3. Under Step 1, click the underlined link to select the sender or condition.
  4. Under Step 2, choose the action (like move to a specific folder).
  5. Click Finish.

That’s it. Your filter is live. Test it by sending yourself an email from that sender. It should land in the folder you specified.

Filtering By Sender Or Domain

Maybe you want all emails from a certain company to go to a folder. Or block messages from a specific domain. Here’s how:

  • In the Rules wizard, select Apply rule on messages I receive.
  • Choose from people or public group.
  • Enter the email address or domain (e.g., @spam.com).
  • Select an action: move, delete, or flag.

You can also filter by domain using wildcards? Not exactly. But you can add multiple addresses manually. For bulk domains, consider using a third-party tool.

Filtering By Subject Or Keywords

Need to catch emails with “invoice” or “urgent” in the subject line? Use the with specific words in the subject condition.

  1. In the rule, select with specific words in the subject.
  2. Type the word or phrase (e.g., “meeting”).
  3. Choose an action like move to folder or mark as read.

You can add multiple keywords separated by semicolons. Outlook treats them as OR conditions—if any word matches, the rule fires.

Filtering By Attachment Or Size

Large attachments clog your inbox. Filter them automatically:

  • In the rule, select with specific words in the body (not ideal for attachments).
  • Better: Use which has attachments condition.
  • Then choose move it to a folder or delete it.

For size-based filtering, you need to use the Advanced Options. Click Advanced in the rule wizard and set message size is greater than a value (e.g., 5 MB).

Using Quick Steps For One-Click Filters

Quick Steps are like macros. They apply multiple actions at once. For example, you can create a Quick Step that moves an email to a folder and marks it as read.

  1. Go to Home > Quick Steps.
  2. Click New Quick Step.
  3. Choose a template like Move to Folder.
  4. Customize the actions.

Quick Steps are manual—they don’t run automatically. But they speed up filtering when you process emails.

Filtering With Search Folders

Search Folders are virtual folders that show emails meeting specific criteria. They don’t move messages; they just display them.

  • Go to Folder tab > New Search Folder.
  • Choose a template like Unread mail or Mail flagged for follow up.
  • Click OK.

You can customize Search Folders by clicking Custom and setting conditions like sender or date range.

Filtering By Date Or Importance

Want to see only last week’s emails? Or high-importance messages? Use the Advanced tab in the rule wizard.

  • For date: received in a specific date range.
  • For importance: with importance level (high, normal, low).

These filters work best when combined with other conditions. For instance, move all high-importance emails from your boss to a “Priority” folder.

Filtering By Category Or Flag

Categories help you color-code emails. You can filter by category using rules:

  1. In the rule, select assign it to a category.
  2. Choose a color category.
  3. Then add an action like move to folder.

Alternatively, use the View tab to group by category. This isn’t a filter per se, but it organizes your inbox visually.

Managing Multiple Filters

You can create dozens of rules. But order matters. Outlook processes rules in the order they appear. To reorder:

  • Go to File > Manage Rules & Alerts.
  • Select a rule and click Move Up or Move Down.

If two rules conflict, the first one wins. For example, if Rule 1 moves emails from “boss” to “Priority” and Rule 2 deletes all emails with “spam,” the boss’s email goes to Priority even if it contains “spam.”

Filtering On Outlook Web (OWA)

Outlook on the web has similar features. Click the gear icon > View all Outlook settings > Mail > Rules. Click Add new rule.

  • Name your rule.
  • Add conditions (sender, subject, etc.).
  • Add actions (move, delete, forward).
  • Click Save.

OWA rules sync with desktop Outlook if you use the same account.

Filtering By Sender’s Domain In Bulk

Blocking an entire domain (like @spam.com) is easy:

  1. Create a rule with from people or public group.
  2. Enter the domain as @spam.com.
  3. Choose delete it or move to Junk Email.

Note: This works only if the sender’s email address matches exactly. Some spammers use random addresses.

Using Conditional Formatting For Visual Filters

Conditional formatting changes how emails look based on conditions. For example, make all emails from your manager appear in red.

  • Go to View > View Settings > Conditional Formatting.
  • Click Add.
  • Name the rule (e.g., “Boss”).
  • Click Condition and set criteria (sender).
  • Choose a font color or style.

This doesn’t move emails, but it makes them stand out.

Filtering By Recipient (To Or Cc)

Sometimes you want to filter emails where you’re in the To field vs. Cc. Use the sent to people or public group condition.

  • Select where my name is in the To box.
  • Or where my name is in the Cc box.
  • Choose an action.

This is useful for newsletters or group emails where you’re Cc’d.

Filtering By Sensitivity Or Importance

Outlook allows sensitivity levels (Normal, Personal, Private, Confidential). To filter by sensitivity:

  1. In the rule, click Advanced.
  2. Select sensitivity and choose the level.
  3. Set an action.

This is rare but handy for corporate environments.

Filtering By Message Class

Advanced users can filter by message class (e.g., IPM.Note for regular emails). This requires the Advanced option and typing the class manually.

  • Click Advanced > Message Class.
  • Enter IPM.Note for standard emails.

This is overkill for most people. Stick to simpler conditions.

Filtering By Attachment Name Or Type

Want to filter emails with PDF attachments? Use the with specific words in the attachment name condition.

  1. In the rule, select with specific words in the attachment name.
  2. Type “.pdf” or “invoice”.
  3. Choose an action.

Note: This checks the attachment file name, not the content.

Filtering By Email Size

Large emails slow down Outlook. Filter them:

  • In the rule, click Advanced.
  • Select message size is greater than.
  • Enter size in KB (e.g., 5000 for 5 MB).
  • Choose move or delete.

You can also filter by size less than a value.

Filtering By Received Date

Archive old emails automatically:

  1. In the rule, click Advanced.
  2. Select received in a specific date range.
  3. Set start and end dates.
  4. Choose move to archive folder.

This is great for cleaning up your inbox monthly.

Filtering By Header Or Custom Field

For tech-savvy users, you can filter by email headers (like X-Spam-Status).

  • In the rule, click Advanced.
  • Select with specific words in the message header.
  • Enter the header name and value.

This is rarely needed. Stick to standard conditions.

Filtering By Flag Status

Flagged emails need attention. Create a rule to move them to a “Follow Up” folder:

  1. In the rule, select flagged for action.
  2. Choose move to folder.

You can also filter by flag color or due date using Advanced options.

Filtering By Importance And Sensitivity Combined

Combine conditions for precision. For example, move high-importance emails from your boss to a folder:

  • Condition 1: from boss@company.com.
  • Condition 2: importance is high.
  • Action: move to “Boss Priority”.

In the rule wizard, add multiple conditions by clicking Add Condition.

Filtering By Category And Flag

You can assign a category and then filter by it. But categories are usually set manually. To automate, create a rule that assigns a category based on sender, then filter by that category.

  1. Rule 1: from newsletter@domain.com → assign category “Newsletters”.
  2. Rule 2: category is “Newsletters” → move to folder.

Note: Rules can’t directly filter by category unless you set it first.

Filtering By Sender’s Address Book Status

Want to filter emails from people not in your contacts? Use the from people or public group condition with “not in my Contacts”.

  • In the rule, select from people or public group.
  • Click except and choose from people in my Contacts.
  • Action: move to “Unknown Senders” folder.

This helps catch spam or unknown senders.

Filtering By Reply Status

Outlook can filter emails that you’ve replied to or forwarded. Use the Advanced option:

  • Select message is flagged as replied to or forwarded.
  • Set an action (e.g., move to “Replied” folder).

This is useful for tracking correspondence.

Filtering By Voting Or Tracking Options

If you use voting buttons, filter by with voting buttons condition. This is rare but available in Advanced.

Filtering By Internet Headers

For advanced spam filtering, use with specific words in the message header. For example, filter emails with “X-Spam-Flag: YES”.

  1. In the rule, click Advanced.
  2. Select with specific words in the message header.
  3. Type “X-Spam-Flag: YES”.
  4. Action: move to Junk.

This requires knowing the header name.

Filtering By Message Format

Filter by HTML, plain text, or Rich Text format:

  • In the rule, click Advanced.
  • Select with message format.
  • Choose HTML, Plain Text, or Rich Text.

Useful for newsletters that come in HTML.

Filtering By To Or Cc Field

Already covered, but worth repeating: use sent to people or public group and specify your email address. You can also filter by multiple recipients.

Filtering By Bcc

Outlook cannot filter by Bcc because the Bcc field is hidden from the recipient. Skip this.

Filtering By Folder Size Or Age

Not a rule, but you can use AutoArchive to move old emails automatically. Go to File > Options > Advanced > AutoArchive Settings.

  • Set age (e.g., 30 days).
  • Choose move to archive folder.

This cleans up old emails without manual work.

Filtering By Read Status

Create a rule to move unread emails to a folder:

  1. In the rule, select marked as unread (or read).
  2. Choose an action.

This is useful for separating read and unread emails.

Filtering By Importance And Attachment

Combine conditions: high importance AND has attachment. Move to “Important Attachments” folder.

  • Condition 1: importance is high.
  • Condition 2: has attachments.
  • Action: move to folder.

In the rule wizard, click Add Condition to add both.

Filtering By Sender And Subject

Narrow down by both sender and subject. For example, from boss with “urgent” in subject.

  1. Condition 1: from boss@company.com.
  2. Condition