Step 1
In your Customer.io dashboard go to the Workspace Settings section. In this section on the Email row click the Settings button.
Step 2
Go to Custom SMTP Settings and click the Add Custom SMTP Server button.
Step 3
In the Add Custom SMTP Server section add the following details:
Address: mail.smtp2go.com
Port: 2525
Authentication: Plain
Username and Password: this can be found in your SMTP2GO dashboard under “Settings > Users”.
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