Sending emails using Gmail's "send mail as"

Follow the steps below to send email from your own address inside Gmail.

1. Add your email to Gmail

Go to Gmail → Settings → Accounts and Import. Then, select "Add another email address" under Send Mail As.

2. Configure sender information

Set your forwarded email (your alias) and your sender's name. Untick "treat as an alias".

Setting the alias address and sender name in Gmail, with 'treat as an alias' unticked

3. Enter SMTP settings

SMTP server: smtp.resend.com
Port: 587
Username: resend
Password: PASTE_API_TOKEN_HERE
Leave TLS enabled as is.

4. Confirm ownership

You will receive an email from Gmail asking you to confirm ownership with a code. Open the link, click Confirm, and you are all set!

5. Send emails from your alias

Now you can select your alias in the From dropdown list when you compose a new message.

Troubleshooting FAQ

Why isn't my alias working?

Check the username is exactly resend, and that the password was pasted in full with no spaces at either end.
Try refreshing your browser, clearing cache, or switching to incognito mode.

Emails go to spam or show a warning

Uncheck "Treat as an alias" (Step 2 in this guide).
Avoid replying to your alias from the same Gmail you're forwarding to — this creates a mail loop.

I click send, but nothing happens

Gmail may block messages sent to your alias from the same Gmail account that you are forwarding to. Google detects a loop and drops the message. These show only in "Sent."

Try clearing your session or using another browser.

Why do my emails say "via Gmail"?

The "via Gmail" label appears when using Google's "Send mail as" — it's not removable.