Set Up Advanced Filter in a Workspace
What you'll learn
In this guide, you'll learn what filters are, how they differ from Lists and Labels, how to build filter conditions, and how to use filter views daily to prioritize replies without missing anything
What Are Advanced Filters (and Why They Matter)
Filters in Master Inbox are rule-based conditions that determine which conversations appear in the view.
Filters are an action layer.
They allow you to narrow down the conversations based on specific rules and attributes.
After setting up, filters help teams:
Prioritize hot leads
Avoid missing follow-ups
Separate signal from noise
Work faster without switching multiple tabs
Example of filters:
Labels
NOTspam/unwanted/casualReply since
less than7 days
They give structure to the replies.
Lists, Labels, and Filter Views - What's the Difference?
MasterInbox uses List Items, Labels, and Filter Views, and each plays a different role.
Understanding this once will make the rest of the inbox intuitive.
List Item = What stage the conversation is in
List Items show where a reply sits in your pipeline.
Examples of Lists:
Lead
Deal
Client
Other
A conversation always belongs to a list.
The list reflects workflow progression.
Lists answer:
"What type of conversation is this?"
Label = Intent of the reply
Labels classify conversations.
They provide the structure that filters and views use.
You can customize, edit, copy, and delete labels in Master Inbox.
By displaying hot replies and removing manual sorting, they save a great deal of time.
Examples of labels:
Hot lead
Interested
Follow-Up
Not Interested
Client
Information request
Spam/Unwanted
Labels answer:
“What is the intent of the prospect or client?”
View = Dedicated Display
A view is a separate, dedicated display of conversations based on specific filter rules.
You can add multiple filters to a view.
It allows you to focus only on the responses that matter to you.
Examples of views:
High priority/high intent
Follow up
Casual
LinkedIn only
Each view creates a clean, separate lens so you can focus only on the replies that are high priority at the moment.
Example
Scenario 1: New Lead Reply
List: Lead
Labels: Interested
Create a view: High intent
Add filter: labels
EQUALSinterested👉 Next step: Reply quickly and qualify the lead in the high-intent view.
Scenario 2: Lead Asked for Time
List: Lead
Labels: Follow-up
Create a view: Follow-up later
Add filter: labels
EQUALSfollow-up👉 Next step: Set a reminder and reply at the right time.
Scenario 3: Existing Client Reply
List: Client
Labels: Client Question
Create view: Clients
Add filter: labels
EQUALSclient or listEQUALSclient👉 Next step: View all client conversations separately.
Scenario 4: Not a Sales Opportunity
List: Other
Labels: Not Interested / Informational
Create view: Unwanted
Add filter: labels
EQUALSunwanted/spam👉 Next step: Separate non-sales replies so high-intent prospects are easier to find.
Common Labels You Can Create for Filter Views
Here are recommended views you can create using these filter combinations.
View: high-intent
Labels
EQUALSinterested, hot leadLast message from
EQUALSprospectReply since prospect
less than14 days
View: follow-up later
Labels
EQUALSFollow-upReply since prospect
less than7 days
View: Casual chats
Labels
NOThot leads, interested, client
How Filter Views Help You Daily
At the top of your inbox, filter views help you instantly answer:
What needs my attention now?
What can wait?
What can be ignored?
What belongs to a client vs a lead?
Instead of scanning every reply, your inbox tells you exactly what to do next.
How to Set Up a Filter to a View
Filters help you organize replies and focus on what matters.
Steps to create a filter:
Click the ➕ (add) icon on the top in the workspace.
Enter a filter name and create it.
Common Filter Labels:
Here are recommended labels you can use to build filters:
Interested
Follow-Up
Not Interested
Client Question
Internal / FYI
Warmup / Noise
Select the filter in the view you just created.
Choose the values you want to filter.
Click Apply, and filters will be applied to the view.
How Filter Conditions Work (with Examples)
Each filter is built using three parts:
1. What to filter by → 2. How to match it → 3. The value
1️⃣ Choose a Field (What you want to filter)
This tells Master Inbox what part of the message to look at.
Common fields you'll use most:
Label → Prospect intent (Interested, Follow Up, Not Now, etc.)
List → Stage of the conversation (Lead, Deal, Client, Other)
Channel → Email or LinkedIn
Campaign Name → Which outreach campaign the reply came from
Domain → Company email domain (e.g. @company.com)
Reply Since / Prospect Reply Since → Time-based filtering
Read Status → Read vs unread messages
Follow-up Count → How many times you've followed up
2️⃣ Choose a Condition (How it should match)
This defines how strict the filter should be.
Most-used conditions:
Equals → Exact match
Doesn't equal → Exclude something
Contains → Partial match
Doesn't contain → Remove noise
Starts with / Ends with → Useful for subjects or domains
OR → Match either condition
NOT → Exclude specific cases
3️⃣ Enter a Value (What you're looking for)
This is where you define the actual rule.
Examples you can follow:
Example 1: Hot leads to reply first
Field: Label
Condition: Equals
Value: Interested
👉 Shows only prospects who showed buying intent.
Example 2: Client conversations
Field: List
Condition: Equals
Value: Client
👉 Helps separate client replies from outbound leads.
Example 3: LinkedIn replies only
Field: Channel
Condition: Equals
Value: LinkedIn
👉 Useful for BDRs handling LinkedIn inbox separately.
Example 4: Replies from last 24 hours
Field: Prospect Reply Since
Condition: Equals
Value: Last 24 hours
👉 Ensures no fresh replies are missed.
Example 5: Exclude warmup or noise
Field: Subject
Condition: Contains
Value: warmup
👉 Keeps real leads visible.
Example 6: Exclude multiple lists with one operator
Instead of adding multiple "Does Not Equals" rows, use NOT once and select all the lists you want to exclude.Field: Lists
Condition: NOT
Value: Not Interested, Follow Up, etc.
Save the filter.
You can add more than 1 filter.
Once saved, your filter automatically groups every message that matches your rules. Your inbox now tells you exactly what to do next, no manual scanning, no missed replies.
Available Filter Types
MasterInbox provides a wide range of filters to help you organize conversations and create highly targeted views.
Date
Filter conversations within a specific date or custom date range.
Recommended use case: View conversations from today, this week, or a custom reporting period.
Reply Since
Filter conversations based on when the last reply was sent.
You can filter by:
All Replies
MasterInbox User Reply
Prospect Reply
Available conditions include:
Less Than
Equals
Does Not Equal
Greater Than
Between
Choose from preset ranges such as Today, Yesterday, Last 3 Days, Last 5 Days, or select a custom date.
Recommended use case: Find prospects who replied within the last few days for faster follow-up.
Reminders
Filter conversations based on reminder status.
Available options include:
Due In
Due Past
Recommended use case: View conversations with upcoming or overdue reminders.
Name, Email & Domain
Search conversations by prospect information.
Available fields include:
Name
Email
Domain
Supported conditions include:
Equals
Does Not Equal
Contains
Does Not Contain
Starts With
Ends With
OR
NOT
Recommended use case: Find replies from a specific prospect or company.
Campaign Name
Filter conversations by outreach campaign.
Choose from the campaigns available in your connected outreach integrations.
Supported conditions include:
Equals
Does Not Equal
Contains
Does Not Contain
OR
NOT
Recommended use case: View replies from a specific campaign while excluding others.
Subject & Keywords
Filter conversations using email subjects or keywords.
Supported conditions include:
Contains
Does Not Contain
OR
NOT
Recommended use case: Exclude warm-up emails or surface conversations containing specific terms.
Channels
Filter by connected communication channels.
Supported conditions include:
Equals
Does Not Equal
OR
NOT
You can select any connected email or LinkedIn channel.
Recommended use case: Create separate views for Email and LinkedIn conversations.
Labels
Filter conversations using one or more labels.
Supported conditions include:
Equals
Does Not Equal
OR
NOT
Choose from all labels available in your workspace.
Recommended use case: Create a view showing only Interested, Meeting Request, or Information Request conversations.
Lists
Filter conversations by List.
Supported conditions include:
Equals
Does Not Equal
OR
NOT
Choose from your available workspace lists.
Recommended use case: Exclude completed pipeline stages or separate Lead, Deal, Client, and Other conversations into dedicated views.
Label Sentiment
Filter conversations based on AI label sentiment.
Available values include:
Positive
Neutral
Negative
Recommended use case: Prioritize positive conversations while separating neutral or negative responses.
Read Status
Filter conversations based on whether they have been read.
Available values:
Read
Unread
Recommended use case: Quickly identify unread conversations that require attention.
Replies in Sequence
Filter conversations based on whether they belong to an outreach sequence.
Available values:
Yes
No
Recommended use case: Separate outreach sequence replies from other conversations.
Has Draft
Filter conversations based on whether a draft reply exists.
Available values:
Yes
No
Recommended use case: Review conversations with pending draft replies before sending them.
Source From
Filter conversations by their originating platform.
Available sources include:
Google
Outlook
Zoho
Custom
SalesRobot
Aimfox
Expandi
SalesFlow
Smartlead
Leadbird
Lemlist
LinkedIn
Instantly
Valley
Supported conditions include:
Equals
Does Not Equal
OR
NOT
Recommended use case: Create views for conversations coming from specific inbox providers or outreach platforms.
Folder
Filter conversations by mailbox folder.
Available folders include:
Archive
Marketing
Spam
Trash
Supported conditions include:
Equals
Does Not Equal
OR
NOT
Recommended use case: Exclude spam, archived, or marketing emails from your working inbox.
Ongoing Conversation
Filter conversations based on whether they are currently active.
Available values:
Yes
No
Recommended use case: Focus only on active conversations that may require further engagement.
Last Message From
Filter conversations by who sent the most recent message.
Available values:
Prospect
Me
Recommended use case: Quickly identify conversations waiting for your reply.
Sent From
Filter conversations based on how the latest reply was sent.
Available values include:
MasterInbox
MasterInbox UI App
MasterInbox Reply Agent
Recommended use case: Separate AI-generated replies from manually sent replies for easier review.
Custom Field
Filter conversations using your custom workspace fields.
Supported conditions include:
Equals
OR
NOT
Enter the value you want to match.
Recommended use case: Build views based on custom business data unique to your workspace.
Message Count
Filter conversations by:
Reply Count
Sent Count
Follow-up Count
Available conditions include:
Equals
Less Than
Less Than or Equal
Greater Than
Greater Than or Equal
Between
Enter the numeric value for the selected condition.
Recommended use case: Find conversations with no follow-ups, identify highly engaged prospects, or review threads with multiple replies.
Troubleshooting Filter Behavior
If a label or conversation isn't appearing in your views as expected, see How Labels, Filters, and Views Work Together for a detailed explanation of how Needs Reply is populated, why labels may not surface in views, and sent-only filtering behavior.