Send Email with Custom Domain Setup Guide

Follow the instructions below to send email with your custom domain and alias using outbound SMTP.

Forward Email Team
Written by
Forward Email TeamVerified
Time to read
Less than 5 minutes

Step by Step Instructions

Important: You are only permitted to use our outbound SMTP service for transactional emails. You are prohibited from sending marketing email (e.g. promotional, bulk, or commercial email to a list of contacts with the same content). This includes examples such as a newsletter or a bulk announcement email. Please ensure you have read our Terms, Privacy Policy, and Outbound SMTP Limits – your use is considered acknowledgement and agreement.
Important: If you are using Gmail, then refer to our Send Mail As with Gmail guide. If you are a developer, then refer to our email API docs – note that we do not support IMAP yet.
  1. Go to My Account Domains Settings Outbound SMTP Configuration and follow setup instructions

  2. Create a new alias for your domain under My Account Domains Aliases (e.g.

  3. Click on Generate password next to the newly created alias. Copy to your clipboard and securely store the generated password shown on the screen.

  4. Using your preferred email application, add or configure an account with your newly created alias (e.g.

    Tip: We recommend using Thunderbird, K-9 Mail, Apple Mail, or an open-source and privacy-focused alternative.
  5. When prompted for SMTP server name, enter

  6. When prompted for SMTP server port, enter 587 (TLS) – see alternate SMTP ports if necessary

  7. When prompted for SMTP server password, paste the password from Generate password in step 3 above

  8. Save your settings and send your first test email – if you are having issues, then please contact us

Congratulations! You've successfully completed all steps.