Business mailboxes under your domain
Create custom email mailboxes for your entire organization with complete control over storage quotas, modern webmail, and universal IMAP/SMTP client access.
What is Mailofly Mailboxes (Business Emails)?
Mailofly Mailboxes provides domain-branded accounts with configurable storage quotas, webmail, password controls, and IMAP/SMTP connection settings.
Mailbox provisioning
Domain-branded inboxes
Standard client access
Technical Parameters & Standards
IMAP (Port 993, SSL/TLS) / JMAP (RFC 8620)
SMTP (Port 587 STARTTLS / Port 465 SSL)
Managed storage with per-mailbox quotas
Included at mail.mailofly.com (Dark mode, attachments)
Engineered for developer velocity
Dedicated storage quotas
Set and update the storage quota recorded for each mailbox.
Standard client compatibility
Connect Apple Mail, Outlook, Thunderbird, or mobile apps via standard secure IMAP (port 993) and SMTP (port 465/587).
One-click security control
Activate, pause, or reset passwords for mailboxes from the organization dashboard.
How it works
Select verified domain
Pick any verified domain in your account to serve as the email address host.
Set handle & quota
Define the mailbox username, strong initial password, and storage allocation.
Connect & communicate
Log into webmail or configure your favorite email client with pre-filled server connection settings.
Frequently Asked Questions
Explore related features
Template Editor & Template Gallery
Create templates visually and personalize supported fields with merge variables. Send HTML rendered from React Email through the API.
Email API & SMTP Relay
Send notifications, receipts, and verification emails through Mailofly's REST API or SMTP relay. Use official SDKs, searchable logs, and signed webhook events to integrate email into your application.
SMTP Relay Service
Connect existing apps and email clients to Mailofly's SMTP relay using an API key. Send from verified domains and inspect recorded delivery status and errors.
Ready to build with Mailboxes (Business Emails)?
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