SuperMailOS
SuperMailOS is managed business email on your own domain for small teams. You bring your domain; SuperMailOS runs the mail server and handles deliverability — SPF, DKIM, DMARC, IP reputation, and warmup — so your email lands in the inbox, not the spam folder.
Setup takes minutes: verify your domain with one-click DNS on Cloudflare, DigitalOcean, and other providers (or guided copy-paste on any registrar), invite your team, and start sending. Every person gets a real mailbox; aliases like hello@ and support@ are unlimited and free.
Webmail is as simple as Gmail — threads, instant search, keyboard shortcuts, labels, dark mode — plus IMAP and SMTP for any mail app, and a live deliverability dashboard showing your mail landing.
Flat pricing per mailbox: Pro $3/mailbox/month annually (10 GB, 3 domains), Business $5 (30 GB, unlimited domains), custom at 50+. 14-day free trial, no credit card.
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Aid4Mail
Aid4Mail is a fast, reliable, and highly accurate tool to collect, recover, search, and convert emails. It supports most mailbox file formats (e.g. PST, OST, OLM, mbox), IMAP accounts (e.g. Yahoo! Mail, AOL) and popular mail service providers (e.g. Microsoft 365, Exchange, Gmail). Aid4Mail can recover double-deleted messages and corrupted emails, and extract MIME data from certain types of unknown file formats through file carving.
Aid4Mail provides a large array of tools to search and filter out unwanted emails during conversion. Save time by using native pre-acquisition filters to download a subset of your mail from Exchange, Office 365, Gmail and other webmail services. Use Aid4Mail’s integrated search engine to cull-down your email collection. Its search operators are very similar to Gmail and Office 365.
Aid4Mail is used by Fortune 500 companies, government agencies and legal professionals around the world. It is made in Switzerland by perfectionists.
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MailTova
MailTova is a hosted business email service for organizations that want branded mailboxes on their own domains. Administrators can connect domains, create and manage mailboxes, and manage mailbox storage from a web dashboard. Users can read and send messages through browser-based webmail or configure compatible third-party clients using IMAP, SMTP, and POP3. The service includes domain verification and setup guidance for email-authentication records such as SPF, DKIM, DMARC, and MTA-STS. MailTova also documents an API and an MCP server for supported client workflows. It is intended for startups, freelancers, small businesses, agencies, and teams seeking hosted domain email without operating their own mail server.
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GenMail
GenMail is an AI-assisted email and calendar client for people who want to manage multiple mailboxes in one workspace. Desktop and mobile apps connect Gmail, Outlook/Microsoft 365, iCloud, NAVER, Yahoo! JAPAN, LINE WORKS, and other accounts that support IMAP/SMTP, with provider-specific limitations. It combines a unified inbox, folders and search with AI inbox triage, message summaries, reply drafts based on the user's writing style, follow-up suggestions, scheduled sending, and natural-language email search. A unified calendar brings together supported connected calendars and includes event creation and RSVP tracking. Users can review and edit AI-generated drafts before sending; account-based AI features consume Genspark credits. GenMail is available for macOS, Windows, iOS, Android, and on the web, while connected mail remains with its email provider.
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