🔗 SMTP protocol

The Simple Mail Transfer Protocol is a networking standard for sending emails (Claudflare, 2026).

You can customize the sender email address in your client communication workflow by setting up an SMTP protocol and branding email communication with your own address. Issues related to brand management are sent via email to your final clients, so it's an important feature for your White Label product. To do this, please send us the following information:

Info. required

• Server Name
• Port
• Access username and password (for the email account, not the email server)
• Email Sender (from)

Ensure the email account has no security restrictions to guarantee expected behavior.

📧​ Types of Emails You Receive

Here are all the type emails you can receive from Metricool:

• Marketing emails. These will only be received by you (integrator, not your final client).
• Notification emails for user management (such as publications sent for approval). These will not be received in the White Label, as the User Management is not available there.
• Error emails in the calendar and account disconnections. These emails are received by both you and your end client. For your end client to receive them (if you're an Integrator), you must set an email address, as indicated in the customization article for iframe integration cited at the bottom of this document. If you add this email address to your iframe integration, the email will be redirected to your client, according to the specified address. Fos Agencies, this is a default feature you have included in the White Label package.
• Warning emails for disconnections. The same principle, as for the previous emails, applies here: if you want your end client to receive them, you will need to configure an email address.

Additional Resources

Updated on: 06/02/2026