MailMate
by MailMate
What MailMate is
MailMate is a desktop IMAP email client for macOS, made by MailMate in Copenhagen, Denmark. It provides a unified inbox, offline access, and scheduled sending, with search tools built around advanced conditions, drill-down links, and smart mailboxes. Messages are composed as plain text, with Markdown conversion to HTML when formatted email is needed. OpenPGP and S/MIME support signing and encryption. By default, displayed HTML messages block external references. Dynamically fetched bundles connect the client with task managers, calendar managers, and external text editors. MailMate supports IMAP accounts and OAuth2 for Gmail and Office365, but not Exchange through its native protocol. Trial Mode has unrestricted features for 14 days of active use. Free Mode keeps all features after Paid Mode expires, while business use requires Paid Mode. The listed Support Development plan costs $10 a month, billed $10 every 3 months.
Who it suits
MailMate suits Mac users who want an IMAP client with offline work, advanced search, encryption, Markdown composition, and third-party integrations. It is less suitable for native Exchange users or buyers needing another desktop platform.
What it does well
- Unified inbox and offline access
- Advanced search and smart mailboxes
- OpenPGP and S/MIME encryption
- Markdown-to-HTML composition
- Blocks external HTML references by default
What to know first
- macOS only
- No native Exchange protocol support
- Business use requires Paid Mode
- Support emails may receive no reply
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free Mode | Access to all MailMate features · Required paid mode for business use | Free |
| Support Development | $10 every 3 months · License key for Paid Mode · Supports ongoing maintenance and development | $10 a month |
| MailMate Development | $10 every 3 months · Subscription supporting ongoing development; required for business use | $10, paid once |
As freron.com lists them, read 21 Sept 2026. The maker's own page has the final word.
Verdict
MailMate offers a feature-rich macOS IMAP workflow with strong search, composition, encryption, and privacy controls. Its platform and Exchange limitations, plus the business-use licensing rule, should guide adoption decisions.
Facts from MailMate's own pages
- Account support
- MailMate supports IMAP accounts and OAuth2 authentication for Gmail and Office365 accounts. · manual.mailmate-app.com, 8 Oct 2026
- App coverage
- desktop · freron.com, 21 Sept 2026
- Composition
- The composer uses plain text and can convert Markdown to HTML for formatted email. · manual.mailmate-app.com, 8 Oct 2026
- Data handling
- MailMate downloads and stores local copies of Gmail messages, while Freron Software says it does not access information in users’ Google accounts. · freron.com, 8 Oct 2026
- Encryption
- MailMate supports signing and encrypting email with OpenPGP and S/MIME. · manual.mailmate-app.com, 8 Oct 2026
- Exchange limit
- MailMate does not support Exchange using its native protocol. · freron.com, 8 Oct 2026
- External content
- By default, MailMate blocks external references in displayed HTML messages to prevent messages from contacting external resources. · manual.mailmate-app.com, 8 Oct 2026
- Founded
- 2010 · freron.com, 28 Sept 2026
- Free Mode
- After Paid Mode expires, Free Mode retains all features, but business use requires Paid Mode. · freron.com, 8 Oct 2026
- Free plan
- Yes · freron.com, 21 Sept 2026
- Headquarters
- Copenhagen, Denmark · freron.com, 28 Sept 2026
- Integrations
- Dynamically fetched bundles integrate MailMate with third-party apps such as task managers, calendar managers, and external text editors. · manual.mailmate-app.com, 8 Oct 2026
- Maker
- Freron Software lists Copenhagen, Denmark, and says MailMate is essentially developed by a single individual. · freron.com, 8 Oct 2026
- Offline access
- Yes · freron.com, 21 Sept 2026
- Privacy
- MailMate stores regular account passwords in the macOS Keychain if the user allows it; OAuth2 tokens are also stored in the Keychain. · freron.com, 8 Oct 2026
- Product
- MailMate is an IMAP email client for macOS. · freron.com, 8 Oct 2026
- Search
- It supports advanced search conditions, drill-down search links, and smart mailboxes. · freron.com, 8 Oct 2026
- Scheduled sending
- Yes · freron.com, 21 Sept 2026
- Support
- MailMate is developed by a single individual, and support emails may not receive a reply. · freron.com, 8 Oct 2026
- Trial
- Trial Mode has no feature restrictions and tracks 14 days of active use. · freron.com, 8 Oct 2026
- Unified inbox
- Yes · freron.com, 21 Sept 2026
Where MailMate stands on Freedom251
- Email clients#59 of 142