Creating a Gmail “send as” address

Want to send emails from another address using Gmail’s interface, but having trouble linking addresses? Auth-Email has you covered!

This guide walks you through setting up a “send as” address in Gmail, so Gmail uses Auth-Email as the SMTP server — perfect for sending as [email protected], [email protected], or any authorized Auth-Email address.

Before you begin

You’ll need the following:

• A Gmail or Google Workspace account
• An Auth-Email account, and an active subscription to the Personal or Pro plan: sign up here
• An account set up in Auth-Email (see our getting started guide if needed)
• SMTP server details from the Auth-Email dashboard for the sender account

Step 1: Add the “send as” address in Gmail

1. In Gmail, go to “⚙️ Settings > See all settings”
2. Click the “Accounts and Import” tab
3. Under “Send mail as, click “Add another email address”
4. Complete the form in the popup window:
   • “Name”: What you want recipients to see (e.g., Support Team)
   • “Email address”: The email you want to send from (e.g., [email protected])
   • Uncheck “Treat as an alias” (this prevents recipients seeing the Gmail account address)
5. Click “Next Step”

Step 2: Configure SMTP settings in Gmail

Visit your Auth-Email dashboard and locate the SMTP settings for your account. Enable the toggle for “Legacy SSL/TLS” if it is not already enabled. Keep this page open for reference.

In the Gmail popup window, enter the account’s SMTP settings. The following table shows the configuration for an account provided by Outlook:

You can always find the correct settings for your specific email account and provider in the Auth-Email dashboard. Here’s what the configuration page looks like in Gmail:

Once you’ve entered and checked all the settings, click “Add Account”.

Step 3: Complete Gmail verification

• Gmail will now send a confirmation email to your newly-linked address
• Open your inbox (either directly or using IMAP/POP via Auth-Email)
• Click the confirmation link or enter the code in Gmail’s popup window

Once verified, Gmail will let you choose the external address in the “From” field when composing new messages.

Test your setup

1. Compose a new email in Gmail
2. Use the dropdown next to the “From” field to select your new address
3. Send a test email
4. Verify that the email arrives in the inbox of the address you sent it to, and that it appears as sent from the “send as” address

💡  Need help?

If you run into any issues, please reach out to us at [email protected] — we’ll help you get things working.

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