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Your own SMTP

How to connect your own email sending service (SMTP)

In Settings › Email Services › SMTP Service, click Add Service, pick your provider (Gmail, Yahoo, SendGrid or Other), enter the host, port, username and password, save and click Set as active.

Updated on

Before you start

  • By default, the account sends through the Elooo System email service, which needs no setup. Only connect your own SMTP if you already have a sending provider (SendGrid, Mailgun, Amazon SES, Postmark, Zoho, Google Workspace…).
  • Have your provider's SMTP details at hand: host, port, username and password or API key. You'll find them in your provider's dashboard.
  • The sender address must be authorized/verified with your provider.
  • With your own SMTP, some deliverability tools from the Elooo System email service are no longer available, such as creating a sending domain in the app, risk assessment, bounce classification, inbox placement testing, the spam score checker and blacklist monitoring.
Where to find it

Settings › Email Services › SMTP Service › Add Service

Step by step

  1. In the left menu, open Settings and click Email Services.
  2. Open the SMTP Service tab (in some versions it's called Advanced Settings).
  3. Click Add Service in the top-right corner.
  4. Under SMTP Provider, choose Gmail, Yahoo Mail, SendGrid or Other (for Mailgun, Amazon SES, Postmark, Zoho and any other provider).
  5. Fill in the details:
    • SMTP Host (for example, smtp.sendgrid.net);
    • Port: usually 587 (TLS) or 465 (SSL);
    • Username and Password / API Key from your provider;
    • From Name and From Email your contacts will see.
  6. Save. The service appears in your list of services.
  7. On the service's row, click Set as active and confirm.
  8. If you want contacts' replies to come into Elooo System, open the active service and check Enable reply.
  9. Send a test email to a contact and check that it arrives and that the reply shows up in Conversations.

Switch back to the Elooo System email service

  1. In Settings › Email Services › SMTP Service, click the Elooo System email service (the default one).
  2. Click Set as active. The SMTP services you added stay saved for later.

Tips

  • Common values: Gmail smtp.gmail.com (port 587 or 465, with an app password); SendGrid smtp.sendgrid.net (port 587, username apikey); Zoho smtp.zoho.com (port 587). Always double-check in your provider's dashboard.
  • You can save several SMTP services, but only one can be active at a time.
  • Switching services only affects future emails.

Common problems

  • The SMTP connection fails → Check the host, port, username and password. If one port is blocked, try the other (587 or 465).
  • I use Gmail and get an authentication error → With 2-Step Verification on, you must use an app password created in your Google account, not your regular password.
  • Emails aren't going out through SendGrid → Verify your domain or sender inside SendGrid and use apikey as the username.
  • Contacts' replies don't show up in Conversations → Check Enable reply on the active SMTP service.
  • Emails fail with a different sender → Your provider only accepts authorized senders. Use the configured address or create a verified alias with your provider.

Frequently asked questions

Can my contacts see which SMTP provider I use?

No. They only see the From Name and From Email you set up.

Can I use a free @gmail.com address as my SMTP?

It works for testing, but it isn't recommended for bulk sending: Gmail caps daily sends, and bulk emails from free addresses tend to land in spam.

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