Hi Lewis,

You can canel the email sent by Tea Commerce, and use your own email sending service instead, by subscribing to the MailSending event.

You can subscribe to events using the Notification Center: Tea Commerce docs

Something like this would probably do the trick:

using TeaCommerce.Api.Models;
using TeaCommerce.Api.Notifications;
using Umbraco.Core;

namespace Website.Events {
  public class TeaCommerceEventHandler : ApplicationEventHandler {

    public TeaCommerceEventHandler() {
      NotificationCenter.EmailTemplate.MailSending += EmailTemplate_MailSending;
    }

    private void EmailTemplate_MailSending( EmailTemplate emailTemplate, MailSendingEventArgs e ) {
      if ( emailTemplate.Alias == "confirmation" ) {
        e.Cancel = true; //Cancel the mail sent by Tea Commerce

        MyOwnEmailSendingService.Instance.SendConfirmation( e.Order );
      }
    }
  }
}

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