Best Email Management Software - Page 11

How Many Email Management Software Products Does G2 Track?

Total Products under this Category: 180

Category Stats (Sep 2026)

  • Average Rating: 4.37/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Clean Inbox for Gmail™ (+5.81%) - Among all products in this category, Clean Inbox for Gmail™ recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Email Management Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 17,600+ Authentic Reviews
  • 180+ 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, Thunderbird, and SaneBox.

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=thunderbird&focus%5B%5D=sanebox)

SeaMonkey Composer

Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing made simple all your Internet needs in one application.

Average Rating: 4.7/5.0

Total Reviews: 13

How Do G2 Users Rate SeaMonkey Composer?

  • Has the product been a good partner in doing business?: 9.4/10 (Category avg: 8.9/10)
  • Ease of Use: 9.1/10 (Category avg: 8.9/10)

Who Is the Company Behind SeaMonkey Composer?

  • Seller: Mozilla
  • Year Founded: 2005
  • HQ Location: San Francisco, CA
  • Twitter: @mozilla
    261,861 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,774 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 62% Small, 31% Large

What Are Recent G2 Reviews of SeaMonkey Composer?

Sedna

Who Is the Company Behind Sedna?

  • Seller: Preflight
  • Year Founded: 2018
  • HQ Location: Chicago Greater Area, US
  • LinkedIn® Page: www.linkedin.com
    10 employees on LinkedIn®

Send Later

Send Later is the easiest way to schedule WhatsApp messages and automate follow-ups, directly from WhatsApp Web or your mobile. No API. No approvals. No technical setup. Just install, connect, and schedule in 15 seconds.

Who Is the Company Behind Send Later?

  • Seller: F22 Labs
  • Year Founded: 2014
  • HQ Location: Mylapore, IN
  • Twitter: @f22labs
    87 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    73 employees on LinkedIn®

SendStreak

SendStreak is a BYOS (bring-your-own-server) email platform: you connect the email backend you already trust - AWS SES, Gmail, Postmark, or any bare-bones SMTP server - and SendStreak adds the tooling of a full email platform on top: visual templates, event-triggered automations, retries, routing across backends, and unified analytics. Teams get feature parity with platforms like Mailchimp or Customer.io while keeping their own infrastructure and sender reputation. Pricing is flat pay-as-you-go, per email sent - never by audience size.

Who Is the Company Behind SendStreak?

Sentrya

Sentrya helps people get rid of spam and junk from their personal Gmail inbox, and easily close and delete old or useless accounts and subscriptions.

Who Is the Company Behind Sentrya?

Sifta

Sifta is an AI agent that automates your inbox so you never have to open it again. Most people spend hours every week managing email scanning through spam, searching for what matters, worrying about what they missed. Sifta handles all of that for you. It connects to your Gmail or Outlook, stops the noise automatically, and texts you only the messages that need your attention. When Sifta texts you, you can reply to take action. Tell it what you want and it handles it. No commands to learn. No app to download. No dashboard to figure out. Just a text back and it's done. Your inbox runs in the background, fully automated. You stay focused on your actual work instead of living inside your email.

Who Is the Company Behind Sifta?

  • Seller: Sifta
  • HQ Location: N/A
  • LinkedIn® Page: linkedin.com
    1 employees on LinkedIn®

SkimAI

SkimAI is the ultimate AI copilot.

Who Is the Company Behind SkimAI?

  • Seller: Skim AI
  • Year Founded: 2017
  • HQ Location: Munich, DE
  • Twitter: @justSkimAI
    31 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

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.

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®

SmartMail

SmartMail employs AI that drafts in your voice, works across your tools, and strips sensitive data before it ever reaches AI Processing.

Who Is the Company Behind SmartMail?

SMART Reply

SMART Reply is a Microsoft-certified AI executive assistant that lives inside Outlook. It learns how you write from your last 400 sent emails, your website, and your documents, then drafts replies, LinkedIn posts, and meeting follow-ups in your own voice without your data ever leaving Microsoft 365. It handles the work an executive assistant would: drafting on-brand emails, prepping meeting briefs from your calendar and inbox, turning Teams transcripts into structured notes and action items, arranging travel and auto-blocking the journey time in your diary, filing documents into the right SharePoint folders, and answering inbox questions through a built-in chat assistant. Single tier, £35 per user per month, 14-day free trial with no card required. Built for busy professionals and small-to-mid sized teams who want the productivity gains of a dedicated assistant without the headcount.

Who Is the Company Behind SMART Reply?

  • Seller: bSMART AI
  • Year Founded: 2024
  • HQ Location: Cheltenham, GB
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Softaken Merge PST Tool

Softaken Merge PST Tool is a reliable solution designed to merge Outlook PST files into a single PST file format without affecting the original mailbox data. This advanced PST Merge Tool combines multiple Outlook PST files while preserving all emails, contacts, calendars, tasks, notes, attachments, and folder hierarchy. It is suitable for both personal and professional users who need to organise Outlook data efficiently. The software supports both ANSI and Unicode PST files. Also, it supports merging password-protected PST files after entering the correct password. The software comes with a simple and user-friendly interface, making it easy for both technical and non-technical users to operate. No Outlook installation is required to perform the merge process. It also enables users to store the resulting data at a chosen path on the PC. Additionally, the utility works efficiently in all versions of Windows OS.

Who Is the Company Behind Softaken Merge PST Tool?

Softaken Thunderbird Conversion Suite

The Softaken Thunderbird Conversion Suite is here to export Thunderbird mailboxes. Its various sophisticated features effectively transfer Thunderbird mailboxes into several formats without lacking any information. Thunderbird mailboxes are moved by this program into MSG, PST, NSF, EML, EMLX, TGZ, HTML, and MHTML. Additionally, it moves Thunderbird data to IMAP-based systems including Gmail, webmail, Yahoo Mail, Microsoft 365, etc. It also allows one to extract attachments from Thunderbird mailboxes. Any type of user can run this tool without any particular understanding since its graphical user interface is overly simple and uncomplicated. One can also convert Thunderbird to PDF file type if someone wishes to print the Thunderbird mails. It fully maintains its email characteristics and data structure throughout conversion. Users are able to save the produced data files at their selected location. Running on any version of the Windows Operating system, including 11, 10, 8.1, 8, 7, XP, Vista, etc., this program is All users also have a free demo available to convert a few Thunderbird files into selected format. Additionally accessible to answer consumers' questions and doubts about the product is technical support staff.

Who Is the Company Behind Softaken Thunderbird Conversion Suite?

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