You can send emails by using your own SMTP server. This is convenient if you can’t use your domain and subdomain with Mailgun. However, the emails won’t be tracked by Upflow.Documentation Index
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Choose “Connect to your SMTP server”
In the Deliverability section of your Settings, click on “Connect to your SMTP server”
Authenticate with your SMTP server
Complete the required fields to set up the SMTP server.