OutMass

OutMass

Metis Information Technologies Ltd
lemlist

lemlist

lempire
+
+

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About

OutMass is a browser extension for Chrome and Edge that adds mass-email and mail-merge capability to Outlook on the web. Campaigns are built inside Outlook itself, and every message is sent through the user's own Microsoft account via the official Graph API, so recipients see a normal email rather than a bulk sender. Microsoft 365 and personal Outlook accounts are both supported. Campaigns start from a CSV: each column becomes a merge tag, and every recipient gets a personalized message. Open and click tracking show who engaged, and a daily reply check catches responses. Automated follow-ups re-contact non-openers and stop the moment someone replies. Scheduled sending, per-day send limits, A/B subject testing, an AI email writer, reusable templates, campaign reports with CSV export, unsubscribe links and OneDrive-link attachments complete the toolset. The interface is available in 13 languages. Free plan: 250 emails per month. Starter: $9/month for 2,500. Pro: $19/month for 10,000.

About

Personalize cold emails, automate follow-ups, and engage with leads across all channels. lemlist is your sales automation and cold email software in one. From teams of 2 to 200+, lemlist solves every outreach automation challenge. Increase your reply rates by communicating with every prospect on a 1-on-1 level. Write custom intro lines and call-to-actions. Automatically put any screenshot, custom text, or company logos onto images in your emails. Add dynamic landing pages and embed videos. Launch powerful cold email sequences, send follow-ups that don't feel generic, and open more opportunities for your business. Close more deals by engaging with your leads across multiple channels on autopilot. Add cold calls and dial prospects with one click. Include custom tasks and social selling. Sync seamlessly with your team and quickly see at what stage a specific lead is in.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Sales and business development teams, recruiters and staffing agencies, marketers, consultants and virtual assistants — individuals and small-to-mid-size teams who run outreach from Microsoft 365 or Outlook.com and want personalized bulk email with tracking and follow-ups without leaving Outlook.

Audience

Sales teams that need an effective personalized cold email solution

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$9 per month
Free Version
Free Trial

Pricing

$29 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 4.0 / 5
ease 3.0 / 5
features 5.0 / 5
design 4.0 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • Such a unique way to create content that inspires users in emails and other ways. I like the customizability.

Cons

  • I had a difficult time implementing it as it's very unique.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Metis Information Technologies Ltd
Founded: 2026
United Kingdom
getoutmass.com

Company Information

lempire
Founded: 2018
France
lemlist.com

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MailMerge365

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SalesTarget.ai

SalesTarget LLC
GBlast

GBlast

Snov.io

Categories

Categories

Email Marketing Features

A/B Testing
Artificial Intelligence
Auto-Responders
CAN SPAM Compliance
Customer Surveys
Drip Campaigns
Dynamic Content
Event Triggered Email
Image Library
Landing Pages/Web Forms
Mailing List Management
Mobile Optimized Emails
Reporting/Analytics
Subscriber Management
Template Management
WYSIWYG Email Editor

Integrations

Microsoft Outlook
Agiled
Asana
Axis LMS
Cobl
Datablist
Google Drive
Incredible
InstaScraper
Latenode
Octave
PhantomBuster
Playable
Prog.AI
Redcar
Salesmotion
Shortlists
Snitcher
Tapistro
n8n

Integrations

Microsoft Outlook
Agiled
Asana
Axis LMS
Cobl
Datablist
Google Drive
Incredible
InstaScraper
Latenode
Octave
PhantomBuster
Playable
Prog.AI
Redcar
Salesmotion
Shortlists
Snitcher
Tapistro
n8n
Claim OutMass and update features and information
Claim OutMass and update features and information
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Claim lemlist and update features and information