Scalendo Email eliminates the need for agencies to integrate third-party email service providers like Mailgun or SMTP. According to the article, "sending & receiving email works right out of the box, on every subaccount."
New agencies without existing SMTP/Mailgun integrations are automatically on Scalendo Email by default.
Important: This action "will not affect sub-accounts that already have SMTP or Mailgun integrated."
To confirm successful migration to Scalendo Email, check if your sending domain matches one of these: