
To verify the inbox is working, HubSpot sends a test email from your inbox to the BCC address for your account.HubSpot logs into the SMTP server with the email address and password that you entered, or the custom username if provided.HubSpot connects to the corresponding SMTP server on the given port.

HubSpot logs into the IMAP server with the email address and password that you entered, or the custom username if provided.HubSpot connects to the corresponding IMAP server on the given port.To better understand why the error occurred, review the steps that take place in order to successfully connect your inbox via IMAP and SMTP:

When you connect your inbox via IMAP and SMTP, you might receive an error during the connection process or in your email integration settings.
