
CubMail
IMAP & SMTP, made simple
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Free
In-App PurchasesWith Ads
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About
Your email, your servers, your choice.
CubMail is a modern email client that connects directly to your providers’ IMAP and SMTP servers. Bring multiple inboxes together, open every folder and stay in control of your data.
EVERYDAY EMAIL, DONE WELL
• Multiple accounts with instant switching
• Inbox, drafts, sent, archive, junk and trash folders
• Reply, forward, star, archive, move and delete
• Sanitized HTML messages, inline images and attachments
• Full composer with To, Cc, Photos and Files
• All, Unread and Starred filters
• IMAP folder creation and filters covering the entire folder
• Compressed profile photo and HTML signature with resizable images
• Scheduled automatic replies with server confirmation
• Read and delivery receipt requests when supported
CONTACTS THAT STAY ORGANIZED
Each mailbox has its own CubMail address book. Contacts added to one account never appear in another. You can also import only the contacts you select from your device.
PRACTICAL PRIVACY
Passwords remain in the device’s secure storage. Message content and attachments travel directly between your device and your IMAP/SMTP servers. CubMail displays Google AdMob ads after gathering privacy choices and offers a one-time purchase to remove them. Your email content, contacts, and IMAP/SMTP credentials are never sent to AdMob.
NOTIFICATIONS WHILE THE APP IS CLOSED
When enabled, our private encrypted relay reads only the headers required to detect new mail. It never downloads message bodies or attachments. Removing an account also removes its local secret, contacts, and local and remote notifications.
MORE INCLUDED
Biometric lock, light and dark themes, widget, shortcuts and nine languages.
GOOD TO KNOW
Your provider must allow password or app-password access. Google and Microsoft OAuth are not available yet.
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What's New in CubMail
1.2.36
October 30, 2026
New: simpler contact synchronization between iPhone and Mac. CubMail can automatically verify your email address using your connected mailbox, without manually entering a code when the verification email arrives. Contacts refresh when you open the address book, and local contacts remain saved if the server is temporarily unavailable.
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Subscriptions & In-App Purchases
$3.99
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