AledaMail
AledaMail is a full email marketing and automation platform for agencies, SaaS products, and businesses that want control over their sending infrastructure. Features include visual campaign builder, marketing automations and journeys, event-driven triggers, transactional email REST API, subscriber list management, deep segmentation, landing pages, AI campaign assistant, and an MCP server for managing campaigns with Claude or ChatGPT. Supports bring-your-own sending infrastructure — connect Amazon SES, SendGrid, Mailgun, Postmark, SparkPost, or any SMTP server. Agency mode includes isolated client workspaces, white-label branding, and a single login for all accounts. Free plan available. No credit card required.
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Arnica EmailServer
Arnica EmailServer is an enterprise-strength tool for automating both mass-emailing and single email processing tasks. Arnica EmailServer also provides functionality for performing either scheduled or on-demand download of incoming emails for multiple accounts and storing them in easy-to-access database tables through specially created database APIs. All email queue, mass-mail and incoming email management is done through a web browser interface. Arnica EmailServer allows you to avoid direct interfacing with low-level SMTP subsystems by providing a high-level easy-to-use application programming interface. You may publish emails into an outgoing queue (or mark them to be sent immediately) using web requests with posted XML provided by Arnica EmailServer, which includes email content together with sender/recipient information as well as other data required for sending an email.
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Opensense
The smarter way to send email.
Opensense helps marketing, sales, compliance, and IT teams unlock the power of employee email to guard their brand and grow their funnel.
With Opensense, you can effortlessly manage company-wide email signatures, launch powerful email ad campaigns, gain valuable sales insights, and ensure compliance, all within a single, user-friendly platform. Our advanced solution seamlessly integrates with the most popular productivity suites and email clients, including Office 365, Microsoft 365, Google Workspace, Outlook, Gmail, and Exchange, as well as major CRM and marketing automation tools like HubSpot, Adobe Marketo, Pardot, Eloqua, Microsoft Dynamics, and Salesforce.
Customers like Qualtrics, Salesforce, Adobe, and Outreach.io use Opensense email signatures and ad campaigns to promote content, events, and power-targeted ABM campaigns.
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Greatmail
Dependable cloud based email hosting with spam filtering, antivirus protection, generous storage and webmail. Compatible with Outlook and all other POP3/IMAP clients. High volume SMTP service for responsible senders. Outbound relay service for transactional messages, email marketing campaigns, newsletters and other applications. Dedicated email servers, clustering and multiple IP load balancing for high volume senders. Fixed monthly cost with unlimited sending and reputation monitoring. Greatmail is an email service provider (ESP) specializing in business class email hosting, SMTP hosting and email servers. For ISPs, application programmers and cloud developers, we also provide custom solutions including dedicated IP servers and process specific, load balanced configurations with multiple servers.
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