Send Without a Domain
Don’t have a custom domain ready or want to start testing Mailofly immediately? You can use Identities as an alternative to setting up a custom domain. An Identity allows you to connect an existing email account—such as a personal or Google Workspace Gmail account, or any custom SMTP server—and send emails directly through Mailofly’s API, SDKs, or dashboard without touching DNS settings.When to Use an Identity vs. a Domain
Important Limitations of Identities
While identities provide an instant way to begin sending emails, they have specific technical limitations compared to verified custom domains:Daily Sending Limits
Mailofly tracks sends per identity according to provider quotas:- Google (Gmail personal): 500 emails / day.
- Google Workspace: Up to 2,000 emails / day (depending on your Google account tier).
- Custom SMTP: Configurable in the dashboard (default 500 emails / day).
deferred and held until your quota resets at 00:00 UTC.Quick Setup Guide
1
Go to Identities
Navigate to Identities in your Mailofly dashboard.
2
Connect your account
Click Add Identity:
- Google: Authenticate via 1-click Google OAuth to connect your
@gmail.comor Google Workspace account. - Custom SMTP: Enter your SMTP host, port (587 or 465), username, and password.
3
Copy your Account Key
Each connected identity displays an Account Key (
acc_...). You can copy this key to target the identity explicitly in API calls, or simply use the connected email address as your from address.Sending Your First Email with an Identity
Once your identity is connected, you can send emails using either the connected email address in thefrom field or by specifying your account_key: