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Connect Everything

Native support for modern and legacy protocols means efficient sync with any provider. JMAP delivers real-time updates with minimal bandwidth. MS Graph provides deep Office 365 integration. IMAP ensures compatibility with every email server.

Contacts sync seamlessly via CardDAV, Google People API, and JMAP Contacts—all in one app.

  • JMAP (Email + Contacts)
  • MS Graph (Office 365 + Contacts)
  • IMAP/SMTP + CardDAV + Google People API


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All Folders, One View

See every email from every account in a single, unified list. No more switching between folders or apps.

  • IMAP folders and Gmail/JMAP labels merged seamlessly
  • Account colors for quick visual identification
  • Synced display names across all providers
  • Smart organization without the clutter


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Now on Android

Same app, same fast backend—just with a native Android interface. The sync engine that powers the iOS version runs on Android too, delivering the same reliability and performance you expect.

Built from the ground up with Jetpack Compose and Material Design. No compromises, no web wrappers—pure native Android. Get it on Google Play



Features

Thoughtful features to simplify your email experience.

Unified Inbox

Synchronize all emails, regardless of folders or labels, into a single view with seamless organization using label tags.

Contacts

Sync contacts via CardDAV, MS Graph, Google People API, and JMAP Contacts—keeping your address book unified across all providers.

Markdown

Convert HTML emails to Markdown for secure, plain-format reading, or use the built-in Markdown editor for clarity and privacy.

Tracking Prevention

Take control of remote image loading with customizable approval settings, protecting your privacy from tracking pixels.

Privacy

All operations happen on your device. Your data is never collected or analyzed, ensuring complete confidentiality.

Account Colors

Assign colors to email accounts for quick visual identification of messages and labels.

Send Identities

Use JMAP aliases to send emails from different addresses without the hassle of managing multiple accounts.

Avatars and Brand Identities

Enhance email context with synced contact avatars, brand images, and additional sender details via robust protocol support.

Customers have nice things to say about Mailtemi

The iOS app has received positive ratings and reviews from users who appreciate its ease of use and helpful features. I'm grateful for their kind words and invite you to see what they have to say.

Great Email client!

Jsfrederick

I really liked this email client. It natively supports JMAP and works VERY well with Fastmail. It’s screaming fast and updates new email quickly. Very pleasant to look at and easy to navigate. I look forward to further development and the addition of new features. Overall a great product. I am willing to pay a modest yearly fee to fund further development.

Should be \# 1 mail app in App Store

vasan musicbox

This app ticks all the boxes for me. I tested all others listed in AppStore and find this appealing for following reasons 1. No data collection - period. Data linked to you, not linked to you confuses a normal person like me. No data tracking is simple to understand. 2. Ease of configuring mails. I don't use the mainstream email providers, so this is a big deal. Mailtemi does it without a sweat. Sync is very fast and quickly we see results of configuration. 3. Colouring mailboxes works great with the color outlining the message sender avatar. 4. Small little things that can be improved. 1. Mailtemi logo missing in the app. It is too clean. 2. No help to understand icons. The one on bottom left functions weird to me. No contact support or developer option from within the app. 3. This is big miss. Configure swipe actions missing. I am used to swipe and delete. This isn't possible here. This has potential to be a unified mailbox for juggling multiple emails with extreme privacy with continuous development.

Decent JMAP Client

jcwacky

Was pleased to find a native app that supports JMAP for Fastmail (as their own app isn’t native). The basics work well, but I’d like to see, • In app browser support for links. • Ability to pin/favourite folders. • Ability for it to open the next newest message after archiving etc.

Fast and enjoyable

Hcarrega

Very fast app and enjoyable to use.

Useful and versatile app

Haspi2

Initially I was planning to try the app with an JMAP service but I also gave it a try with my Gmail accounts and it worked pretty well so I’ll start using it as my go-to app for email.

Unified Email & Contacts

Apple Download on iOS Android Get it on Android