Choose a sending identity for each workflow
Connect a Gmail account through OAuth or use a verified domain or SMTP identity, then select that identity in supported sending workflows.

What is Mailofly Multi-Sender Identities (Domain & Gmail)?
Mailofly supports verified-domain, Gmail OAuth, and SMTP sending identities. Gmail identities use the Gmail API and do not require adding that Gmail address as a Mailofly sending domain.
Identity types
Google connection
Provider restrictions apply
Technical Parameters & Standards
Custom Verified Domain, Google Workspace, Personal Gmail
Google OAuth 2.0 with token refresh
Gmail API, verified-domain transport, or configured SMTP
Configured workspace and provider limits
Engineered for developer velocity
Gmail API integration
Connect supported Google accounts with OAuth and send through the Gmail API.
OAuth token refresh
Mailofly refreshes supported Google OAuth tokens when needed for authenticated requests.
Multiple identity types
Use verified domains, connected Google accounts, or configured SMTP identities.
How it works
Connect Google account
Authenticate your Google Workspace or Gmail account through our secure Google OAuth flow.
Set identity name & daily limits
Assign a display name and review the limits that apply to the connected account.
Dispatch via API or campaigns
Specify the sender identity ID in your API call or select it in your campaign sequence builder.
Frequently Asked Questions
Explore related features
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.
Marketing Emails & Broadcasts
Create and schedule marketing campaigns for segmented audiences, use supported template variables, select sender identities, and review campaign analytics.
Ready to build with Multi-Sender Identities (Domain & Gmail)?
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