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Top Rated Email Management Software with Open source - Page 4

Last updated: October 2026

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469 software options

Easymailing logo

Advanced Email Marketing & Campaign Analytics Platform

Streamline your email list management with precise segmentation, easy subscriber handling, automated list maintenance, and full compliance to enhance your marketing efficiency.

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Automatic Email Manager logo

Be more productive with auto-print emails, attachments, ...

Automatic Email Manager is a Windows-based software that controls and actions all repetitive tasks concerning incoming emails and attachments that can end with taking up valuable time.

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kMail logo

Experience secure messaging with our trusted service

Infomaniak's Mail Service offers secure and private email solution, developed and hosted in Switzerland, it has free 20GB storage, @ik.me, @ikmail.com, @etik.com addresses or custom domain name with unlimited storage. Syncing contacts and appointments across all devices.

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VistaQuote logo

Inbound RFQ Mgmt. with Auto-Quoting & Online Quote Approval

Transform how you manage inbound RFQs & send customer quotes. With a single click, quotes are sent to customers & seamlessly entered into your software without manual entry. It even interprets plain-text emails using AI, enabling automatic quoting, enhancing efficiency, and saving valuable time.

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PushNami logo

Subscriber Engagement & Monetization Platform

Get unmatched delivery with Pushnami's email platform. Coupled with web-based push notifications and Facebook messaging, Pushnami makes it easy to target your subscribers across all channels.

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EngageBay CRM logo

Integrated sales & marketing software for growing teams

AI-powered all-in-one CRM for marketing, sales, and support — built to help small businesses grow faster.

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Mailspring logo

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eM Client Converter logo

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SendPost logo

Cloud-based email verification platform.

SendPost provides an Email API and SMTP relay for developers, software businesses, and ESPs with tools, expertise, and support needed to reliably deliver, measure and optimize transactional emails.

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Konnect eMail Central logo

Streamlines email management in SharePoint

Konnect eMail Central integrates Outlook with SharePoint, Microsoft Teams, and OneDrive, allowing users to save emails and attachments while capturing email metadata for classification and records management. The solution enables organizations to meet regulatory requirements through features like drag-and-drop functionality, document sharing, and the ability to search, filter, and edit SharePoint content directly within Outlook.

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CentrixOne Email Marketing logo

CentrixOne Email Marketing : simple, intuitive, affordable

CentrixOne Email Marketing is a simple, intuitive, and affordable solution. It enables businesses to manage contacts, send emails, and track statistics. It offers tools that turn prospects into customers. It creates and customizes responsive emails in just a few minutes.

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Umbler Mail logo

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Kasplo logo

Set up professional email campaigns that engage your users.

Professional email marketing campaigns can help you achieve loyal customers who wish to hear from you all the time.

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GlobiMail for Podio logo

Get your Email conversations into Podio

Podio is a great way to run your business, but it can be almost impossible to get your customers to give up email. Fortunately, they don't have to. With GlobiMail for Podio, your email conversations automatically get into Podio. Perfect for tracking sales opportunities, running a helpdesk, and managing projects.

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InMoat logo

Email productivity tool for Gmail & Outlook users

InMoat is an email productivity extension designed to help employees sort and manage business emails within the inbox and move unwanted emails into a custom folder. It allows professionals to prioritize emails from team members, clients, vendors, associates, and other known contacts and analyze inboxes to identify trusted contacts.

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servermx logo

Email Hosting Solution

Servermx is a secure email hosting service that provides encryption for confidential emails, optional Dropbox integration for easy file sharing and two-factor authentication for an extra layer of security.

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Experian Email Verification logo

Real-time email validation from Experian

Experian Email Validation, a powerful solution that empowers organisations to effortlessly validate email addresses, ensuring their accuracy in terms of syntax, format, domain, and beyond. With this advanced tool at your disposal, you can easily oversee and optimise your marketing campaigns.

Read more about Experian Email Verification

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Microsoft Project Server Subscription Edition logo

Project portfolio management software

Project Server is an on-premises software designed to help businesses plan, monitor, manage, and deliver project portfolios. The platform enables managers to view real-time project status along with the most current information on resource availability, document usage, and more on a centralized dashboard.

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Punt logo

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Mailsoftly logo

Email marketing and automation with real human support.

Send through your Google Workspace or Microsoft 365 account, or on Mailsoftly's own sending infrastructure, all from one dashboard. Guided SPF, DKIM, and DMARC setup, deliverability digests, and sender reputation monitoring keep mail in the inbox. Bot-filtered tracking shows real engagement.

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Mail Backup X logo

Email backup and management software

Mail Backup X is an email management software designed to help individuals and professionals across SMBs to run remote backups for data on mail clients or services including Office 365, Microsoft Exchange, Gmail, and Google Workspace, among others. Administrators can utilize the dashboard to receive alerts and notifications when mail backup is turned off for team members.

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NEWTON logo

Cloud-based entity management platform

NEWTON is a legal entity management software centralizes data, automates compliance, and manages documents securely for businesses of all sizes. The platform offers a robust suite of features designed to streamline entity management, compliance tracking, and document handling, empowering organizations to optimize operations, ensure compliance, and enhance efficiency.

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ActiveInbox logo

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Email Monster logo

Never reveal your email address again

Email Monster acts as a firewall for your email address. You never have to reveal your real email anymore.

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Dialog Insight logo

Read more about Dialog Insight

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