01
Choose your Google account
Sign in to the Gmail or Google Workspace account that should be used for sending.
GMass SMTP service
An SMTP service built on top of your Google account.
Connect an app, website, or server to smtp.gmass.co and send through the Gmail or Google Workspace account you already use.
No separate SMTP provider account to configure. Sign in with the Google account you want to send through, then we’ll give you the endpoint and credentials on the next screen.
Works with GmailWorks with Google WorkspaceSetup takes about a minute
Your sending path
Simple setup
Your app or serverAnything that can send through SMTP
SMTP
↓
smtp.gmass.coGMass SMTP endpoint
25 · 2525 · 587 · 465
↓
Your Google accountThe account you authorize on the next screen
Gmail / Workspace
One endpointsmtp.gmass.co
TLS supportedor connect without TLS
Your accountyou choose the sender
Three steps
From Google sign-in to SMTP credentials.
The next screen gives you everything you need to plug GMass into your application.
02
Get your SMTP credentials
We’ll show your host, supported ports, username, and generated SMTP password on one screen.
03
Connect and test
Paste the credentials into your app, or jump straight into the GMass SMTP Test Tool with the settings prefilled.
Ready to get your SMTP credentials?
Authorize the Google account you want to send through. You’ll come right back here with your connection details.