Best Email Management Software - Page 4

How Many Email Management Software Products Does G2 Track?

Total Products under this Category: 217

Category Stats (Oct 2026)

  • Average Rating: 4.38/5 (↑0.01 vs Sep 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Bluemind (+1.71%) - Among all products in this category, Bluemind recorded the largest rating increase compared to last month

Last updated: October 24, 2026

How Does G2 Rank Email Management Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 17,700+ Authentic Reviews
  • 217+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Email Management Software

G2 Grid® for Email Management Software plotting products by satisfaction and market presence

Highlighted products: Microsoft 365, Superhuman Mail, Front, Missive, Microsoft Exchange, Hiver in Gmail, SaneBox, and Thunderbird.

Underlying data: [Grid® JSON](https://www.g2.com/categories/email-management/grids.json?focus%5B%5D=microsoft365&focus%5B%5D=superhuman-mail&focus%5B%5D=front&focus%5B%5D=missive&focus%5B%5D=microsoft-microsoft-exchange&focus%5B%5D=hiver-in-gmail&focus%5B%5D=sanebox&focus%5B%5D=thunderbird)

CloudFiler

CloudFiler is an email filing and search tool that works on all Outlook platforms including Android phones & tablets, iPhones, iPads, all popular browsers, Macs and ARM based devices. It was created using up-to-date development technologies by the original architect of the Oasys email management system previously owned by Arup and the Excitech Mail system owned by Symetri. File to: the cloud, Windows folders, SharePoint, OneDrive, Egnyte, etc. Built to work with Exchange on-line and Microsoft 365 it provides a fast and reliable email filing and search service via whatever device you happen to be using at the time. CloudFiler is a web Add-in and thus works with 'New Outlook'

Average Rating: 4.7/5.0

Total Reviews: 9

How Do G2 Users Rate CloudFiler?

  • Has the product been a good partner in doing business?: 9.4/10 (Category avg: 8.9/10)
  • Ease of Use: 9.5/10 (Category avg: 8.9/10)
  • Attachment Search: 10.0/10 (Category avg: 8.5/10)

Who Is the Company Behind CloudFiler?

  • Seller: Dinamich Ltd
  • Company Website:
  • Year Founded: 2021
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of CloudFiler?

Slashy

Slashy is an AI-native email client for Gmail and Google Workspace, built for founders, executives, sales teams and other people who live in their inbox. It drafts replies in your voice, triages what matters, tracks follow-ups, and handles scheduling from inside the email, so most of your inbox is a one-click job. AI drafts that sound like you. Slashy reads the full thread and your past emails to generate a reply that matches your tone, length and habits. An inline assistant handles rewrites and tone or length edits, and voice drafting turns spoken notes into polished emails. It learns from every correction you make. Triage before you read. Importance labels sort incoming mail into To Respond, FYI, Notifications, Meeting updates, Awaiting reply and more. Follow-up tracking watches threads that have gone quiet and nudges you before they slip. Reminders, snooze and scheduled send are built in. Memory and search. Slashy remembers facts about your contacts, companies and preferences, and its AI search answers questions across your inbox in plain language, including attachment search. Calendar and meetings. A calendar sidebar sits next to every email so you can suggest times or book a meeting without leaving the thread. Multi-person calendar view finds a slot across several people at a glance, and automatic meeting briefs are prepared from your inbox before each call. Built for teams. Invite teammates, share inboxes, and discuss any thread privately with comments and @-mentions. Team read receipts show who has seen what, and shared snippets and templates keep replies consistent. Billing is per user, so teams pay only for the seats they use. Integrations and platforms. Slashy connects to Slack, iMessage, HubSpot, Salesforce, Attio, Granola and Notion, and exposes an MCP server for AI agents. Available on macOS, web and iOS. Security and privacy. SOC 2 Type II certified, AES-256 encryption, and your emails are never used to train AI models. Pricing. Professional is $30 per user per month or $300 per user per year, with a 7-day free trial.

Average Rating: 4.9/5.0

Total Reviews: 9

How Do G2 Users Rate Slashy?

  • Ease of Use: 9.8/10 (Category avg: 8.9/10)
  • Attachment Search: 10.0/10 (Category avg: 8.5/10)
  • Email Automation: 10.0/10 (Category avg: 8.5/10)

Who Is the Company Behind Slashy?

  • Seller: Slashy
  • Year Founded: 2025
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    18 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Slashy?

Inbox Zero

Automate your email inbox with AI, bulk unsubscribe from newsletters, automatically block cold emails, and view analytics. Fully open-source.

Average Rating: 5.0/5.0

Total Reviews: 8

How Do G2 Users Rate Inbox Zero?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)
  • Ease of Use: 9.5/10 (Category avg: 8.9/10)
  • Attachment Search: 9.3/10 (Category avg: 8.5/10)
  • Email Automation: 9.6/10 (Category avg: 8.5/10)

Who Is the Company Behind Inbox Zero?

Who Uses This Product?

  • Company Size: 75% Small, 13% Medium

What Do G2 Reviewers Say About Inbox Zero?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Inbox Zero, enjoying effortless inbox management and enhanced email organization.
  • Users value the effective inbox management of Inbox Zero, simplifying email sorting and reducing stress significantly.
  • Users value the time-saving features of Inbox Zero, making inbox management efficient across multiple accounts.
  • Users value the AI integration of Inbox Zero, enhancing productivity and simplifying email management effortlessly.
  • Users praise the responsive customer support of Inbox Zero for promptly addressing issues and enhancing the user experience.
Cons
  • Users find the difficult setup of Inbox Zero challenging due to quirks and cumbersome self-hosting requirements.
  • Users report limited features in Inbox Zero, with missing functionality impacting their overall experience and ease of use.
  • Users find the web UI cluttered, wishing for a cleaner design to enhance their experience.

What Are Recent G2 Reviews of Inbox Zero?

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GroupOffice

GroupOffice is an open-source groupware and CRM platform for enterprises and the public sector. It’s created and maintained by the Dutch company Intermesh. You can self-host the software or run it on Intermesh’s secure cloud infrastructure, where your data remains fully private. Collaborate with integrated file sharing, video conferencing, E-mail, calendar and contact management, project and time tracking, quoting and invoicing, support ticketing, and the Collabora Online office suite. By combining all these tools in a single platform, GroupOffice eliminates the need for multiple separate systems and streamlines your workflow. GroupOffice is easily extensible with custom modules, allowing you to tailor the platform to your specific needs.

Average Rating: 4.2/5.0

Total Reviews: 10

How Do G2 Users Rate GroupOffice?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)
  • Ease of Use: 7.5/10 (Category avg: 8.9/10)

Who Is the Company Behind GroupOffice?

  • Seller: Group Office
  • Year Founded: 2003
  • HQ Location: ’s-Hertogenbosch, North Brabant
  • Twitter: @GroupOffice
    307 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    5 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 45% Medium, 36% Large

What Are Recent G2 Reviews of GroupOffice?

What Are G2 Users Discussing About GroupOffice?

Mailman

Mailman is an email management software that shields you from unimportant emails. It minimizes interruptions and increases productivity for calmer days. Anybody with your email address can start sending you unsolicited emails. With Mailman, you can control who can send you emails, what kind of emails, and when.

Average Rating: 4.3/5.0

Total Reviews: 6

How Do G2 Users Rate Mailman?

  • Ease of Use: 9.2/10 (Category avg: 8.9/10)
  • Attachment Search: 6.1/10 (Category avg: 8.5/10)
  • Email Automation: 8.3/10 (Category avg: 8.5/10)

Who Is the Company Behind Mailman?

  • Seller: Mailman
  • Year Founded: 2020
  • HQ Location: Victoria, CA
  • LinkedIn® Page: www.linkedin.com
    8 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Mailman?

timetoreply

timetoreply is an email analytics & relationship intelligence platform for B2B customer-facing teams - a live dashboard for team managers, and a Smart Coach for team members that sits in their inbox, prioritising their next action for them. timetoreply can be fully implemented within hours, and there is no change to how your teams work. Works with Outlook and Gmail, surfacing performance & SLA metrics + sentiment, intent, urgency and categorization of customer emails. timetoreply is SOC 2 Type II and ISO 27001 certified, HIPAA and GDPR compliant.

Average Rating: 4.2/5.0

Total Reviews: 6

How Do G2 Users Rate timetoreply?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 8.9/10)
  • Ease of Use: 9.0/10 (Category avg: 8.9/10)

Who Is the Company Behind timetoreply?

  • Seller: timetoreply
  • Company Website:
  • Year Founded: 2013
  • HQ Location: Leatherhead, ZA
  • LinkedIn® Page: www.linkedin.com
    11 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Small, 33% Medium

What Are Recent G2 Reviews of timetoreply?

Clean Inbox for Gmail™

Clean Inbox for Gmail™ is a privacy-friendly solution for Gmail™ to filter incoming spam, marketing and manage white and blacklists. It has no access to the contents of your e-mail. Unlike other tools, this add on looks to the future, to new incoming mails, instead of repairing damage that has already been done. Users can browse and install a large catalogue of community published filters.

Average Rating: 4.1/5.0

Total Reviews: 5

How Do G2 Users Rate Clean Inbox for Gmail™?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)
  • Ease of Use: 9.3/10 (Category avg: 8.9/10)
  • Attachment Search: 5.0/10 (Category avg: 8.5/10)
  • Email Automation: 0.0/10 (Category avg: 8.5/10)

Who Is the Company Behind Clean Inbox for Gmail™?

Who Uses This Product?

  • Company Size: 80% Small, 40% Medium

What Are Recent G2 Reviews of Clean Inbox for Gmail™?

Mailtrim

Explore new ways in organising your business emails with the desktop email client, Mailtrim. It helps you route the specific email threads to a pre-determined category, therefore letting you access them faster. Using Mailtrim, you can send smart, customised, and secured emails while enabling create a rule, display fonts, and PGP encryption. This business email client works with the email providers of IMAP, Gmail, Yahoo, AOL, and more. You have to set up Mailtrim in your Windows, Mac, or Linux and start accessing it with your public domain email ids.

Average Rating: 4.8/5.0

Total Reviews: 5

How Do G2 Users Rate Mailtrim?

  • Ease of Use: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind Mailtrim?

Who Uses This Product?

  • Company Size: 80% Medium, 20% Small

What Are Recent G2 Reviews of Mailtrim?

What Are G2 Users Discussing About Mailtrim?

SlapMail

SlapMail syncs your Gmail and Outlook mailboxes with your Notion databases, and lets you reply from Notion. Emails appear automatically as pages with structured properties (sender, date, subject) and are linked to the right contact. Your team can assign, discuss and reply without leaving Notion. Turn Notion into your team's central hub for customer support, sales and operations. Key features: automated sync with no forwarding required, reply from Notion, team collaboration with email assignment, smart routing of emails to different databases via labels, automatic contact linking, attachments stored in Notion, internal comments kept hidden from customers (start with #), multiple mailboxes support, and persistent records even if emails are deleted from the original inbox. Security: Google CASA Tier 2 audited and Microsoft-verified publisher.

Average Rating: 5.0/5.0

Total Reviews: 5

How Do G2 Users Rate SlapMail?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)
  • Ease of Use: 9.2/10 (Category avg: 8.9/10)

Who Is the Company Behind SlapMail?

  • Seller: Slap
  • Year Founded: 2025
  • HQ Location: N/A
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 80% Small, 20% Large

What Are Recent G2 Reviews of SlapMail?

Synology Office Suite

Synology Office Suite is a comprehensive on-prem productivity solution designed to help organizations embrace AI transformation, enhancing communication, streamlining workflows, and accelerating content creation. With a one-time purchase, it provides a cost-effective solution for organizations of all sizes. The suite brings user-friendly and intuitive tools including Synology Drive, Office, MailPlus, Chat, Calendar, Contacts, Note Station, and AI Console, making it easy for teams to get started. For more information please visit: https://www.synology.com/en-global/dsm/overview/productivity

Average Rating: 4.4/5.0

Total Reviews: 22

How Do G2 Users Rate Synology Office Suite?

  • Has the product been a good partner in doing business?: 8.9/10 (Category avg: 8.9/10)
  • Ease of Use: 8.4/10 (Category avg: 8.9/10)
  • Attachment Search: 9.4/10 (Category avg: 8.5/10)
  • Email Automation: 9.4/10 (Category avg: 8.5/10)

Who Is the Company Behind Synology Office Suite?

  • Seller: Synology
  • Year Founded: 2000
  • HQ Location: Taiwan
  • Twitter: @Synology
    67,298 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    993 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 68% Small, 32% Medium

What Do G2 Reviewers Say About Synology Office Suite?

AI-generated summary from verified user reviews

Pros
  • Users find Synology Office Suite easy to use, enhancing daily collaboration and efficiency in small office environments.
  • Users appreciate the seamless integrations of Synology Office Suite, enhancing collaboration and data protection across various platforms.
  • Users enjoy the seamless team collaboration with Synology Office Suite, enhancing productivity through real-time document sharing and management.
  • Users appreciate the real-time collaboration features of Synology Office Suite, enhancing teamwork and document management effortlessly.
  • Users enjoy the easy-to-use collaboration tools of Synology Office Suite, enhancing productivity and workflow efficiency.
Cons
  • Users find the limited features of Synology Office Suite restrict its functionality compared to Office 365.
  • Users note the missing features in Synology Office Suite, impacting functionality and limiting complex task performance.
  • Users find the lack of advanced features in Synology Office Suite makes it a less viable solution compared to Office 365.
  • Users find the conversion of Microsoft documents unsatisfactory, impacting usability and resulting in errors.
  • Users find Synology Office Suite lacking in features compared to competitors, impacting usability for complex tasks.

What Are Recent G2 Reviews of Synology Office Suite?

Boxbe

Boxbe is an integrated email helper enabling Gmail, Yahoo and AOL users to prioritize and reduce email overload.

Average Rating: 4.5/5.0

Total Reviews: 4

How Do G2 Users Rate Boxbe?

  • Ease of Use: 10.0/10 (Category avg: 8.9/10)
  • Attachment Search: 8.3/10 (Category avg: 8.5/10)
  • Email Automation: 8.9/10 (Category avg: 8.5/10)

Who Is the Company Behind Boxbe?

  • Seller: Boxbe
  • Year Founded: 2005
  • HQ Location: San Francisco, us
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 60% Medium, 40% Small

What Are Recent G2 Reviews of Boxbe?

What Are G2 Users Discussing About Boxbe?

HeyHelp

HeyHelp is the AI email assistant built for Gmail users. It sorts, drafts, and follows up so busy professionals can save 1 hour a day to focus on what matters. Most inboxes steal hours each week in clutter, follow-ups, and repetitive replies. HeyHelp clears the noise: auto-tagging, organizing, highlighting priorities, and drafting responses in your voice. No new apps, no broken workflows. Just Gmail, finally working as it should. ✨ What makes HeyHelp different? → Native to Gmail: It runs where you already work, with zero friction. → Your choice of AI: OpenAI, Anthropic, or Google Gemini. Swap anytime. → Privacy & Security first: Google-verified, CASA Tier 2 compliant, end-to-end encrypted. ✨The impact → Save hours per week. → Gain clarity with a pre-cleaned inbox. → Reduce mental load with replies and follow-ups handled. HeyHelp gives professionals back their time, focus, and headspace - so email becomes background, not busywork.

Average Rating: 4.9/5.0

Total Reviews: 4

How Do G2 Users Rate HeyHelp?

  • Ease of Use: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind HeyHelp?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About HeyHelp?

AI-generated summary from verified user reviews

Pros
  • Users commend HeyHelp for its ease of use, making email management intuitive and stress-free.
  • Users love the efficient inbox management of HeyHelp, significantly reducing email handling stress and time spent.
  • Users praise HeyHelp for its automation capabilities, significantly enhancing inbox management and saving valuable time daily.
  • Users love the exceptional customer support of HeyHelp, appreciating the swift and friendly assistance provided.
  • Users commend the exceptional customer support of HeyHelp, noting their responsiveness and friendly assistance.

What Are Recent G2 Reviews of HeyHelp?

Krystal

Krystal is a web hosting and cloud service provider started in 2002 we specialise in cutting-edge tools and technology for businesses around the world. We do things differently, offering premium services that are sustainable without sacrificing performance. Today we’re the UK’s largest independent web hosting company, and the world’s only B Corp web host & public cloud provider. Whether it’s our award-winning web hosting, bespoke cloud services, VoIP solutions, or outstanding UK customer support, we never compromise on our products, service or planet-first approach. We are powered by 100% renewable electricity, and after reinvesting profits into improving our service, we direct any surplus cash towards environmental initiatives. We offset the carbon emissions of our entire workforce and plant millions of carbon-capturing, habitat-restoring trees. Whatever the size of your business or its ambitions, Krystal has a sustainable solution to futureproof your business and power your growth.

Average Rating: 4.9/5.0

Total Reviews: 28

How Do G2 Users Rate Krystal?

  • Has the product been a good partner in doing business?: 9.9/10 (Category avg: 8.9/10)
  • Ease of Use: 9.6/10 (Category avg: 8.9/10)
  • Attachment Search: 9.2/10 (Category avg: 8.5/10)
  • Email Automation: 9.2/10 (Category avg: 8.5/10)

Who Is the Company Behind Krystal?

  • Seller: Krystal Hosting Ltd
  • Year Founded: 2002
  • HQ Location: London, UK
  • Twitter: @krystalhosting
    2,890 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    203 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 93% Small, 7% Medium

What Do G2 Reviewers Say About Krystal?

AI-generated summary from verified user reviews

Pros
  • Users commend Krystal for their exceptional customer support, appreciating quick, knowledgeable assistance and reliability in hosting.
  • Users commend Krystal for its exceptional support, fast performance, and user-friendly tools that enhance their hosting experience.
  • Users commend Krystal for their quick response times, with support consistently providing first-class assistance.
  • Users commend Krystal's unmatched reliability, highlighting consistent performance, zero downtime, and exceptional customer support.
  • Users find Krystal to be affordable, with competitive pricing for reliable and feature-rich hosting services.
Cons
  • Users note that while Krystal is expensive, the exceptional service often justifies the price.
  • Users mention the high cost of Krystal, though they find the service exceptional and worth the investment.
  • Users note the high pricing of Krystal, but some feel the service quality justifies the cost.
  • Users note access restrictions due to shared hosting limits, which can hinder certain installations and command line use.
  • Users note that while the price of Krystal can be high, its cost issues are justified by exceptional service.

What Are Recent G2 Reviews of Krystal?

Clarity Inbox

Clarity Inbox is an AI operating system for businesses and consultants who run their work from Gmail and Outlook, built to help you regain time and focus on what matters. It automates the 10–15 hours a week owner-operators lose to inbox admin — drafting replies, labelling threads, catching follow-ups, scheduling meetings, and keeping deals from going cold — without switching apps or learning a new tool. ✅ Lives Inside Gmail & Outlook – No new inbox. Connects in 30 seconds and quietly handles the work in the background. ✅ EMAIL TRIAGE & DRAFTING - Clarity labels every email, and drafts replies in your voice so you never have to start from scratch. Just review, edit if needed, and hit send. ✅ MEETING SCHEDULING - Clarity finds a time that works, sends the invite, and reschedules when plans change. No more back-and-forth. ✅ REMINDERS & ACTION ITEMS - Clarity detects action items from your emails and meetings, reminds you what’s due, and keeps you on track so nothing slips through the cracks. Review notifications and approve or reject work that needs your sign-off. ✅ Deep Work - Assign a task to Clarity and it gets to work. It pulls context from your tools, takes action, and delivers the result. When you’re ready, it handles everything end-to-end. The more you trust it, the more time it gives back. ✅ Daily Briefings – Clarity sends you two briefings a day — morning and midday — so you always know what's happened in your inbox without checking it. ✅ Todo List - A central place to kick off new tasks and stay on top of your ongoing work. ✅ Automate routines – Automate your life with natural language in minutes. ✅ Knowledge base Agent - Runs 24/7 to remember every client, deal, and commitment so you don't have to. ✅ Prebuilt Playbooks – Playbooks across sales, ops, and client management to help you save more time. ✅ Grows With You – Clarity scales from solo to 50-person firms. If you're one person, you'll feel like ten. If you're ten, you'll run like a hundred. Check it out at clarityinbox.com

Average Rating: 5.0/5.0

Total Reviews: 3

How Do G2 Users Rate Clarity Inbox?

  • Ease of Use: 9.4/10 (Category avg: 8.9/10)
  • Attachment Search: 10.0/10 (Category avg: 8.5/10)
  • Email Automation: 10.0/10 (Category avg: 8.5/10)

Who Is the Company Behind Clarity Inbox?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Clarity Inbox?

Kerio Connect

Kerrio Connect makes email, calendars, contacts, and task management easy by putting it all in one place

Average Rating: 1.7/5.0

Total Reviews: 3

How Do G2 Users Rate Kerio Connect?

  • Has the product been a good partner in doing business?: 3.9/10 (Category avg: 8.9/10)
  • Ease of Use: 7.2/10 (Category avg: 8.9/10)

Who Is the Company Behind Kerio Connect?

  • Seller: Aurea SMB Solutions
  • Year Founded: 1992
  • HQ Location: Austin, US
  • Twitter: @GFISoftware
    29,625 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    193 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Kerio Connect?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated March 7, 2025