Sending an email from a registrar module

Hello!

I coded my own registrar module and am having some problems with the _GetEPPCode() function, because I am getting the EPP code as part from the API response and need to send it myself to the client.

So what I need to do is to send an email directly from the module by using thet EPP code I get. The best thing would probably be to create an email template for this purpose, then use that template from the module and send the mail to the client, and if possible also archive that mail with the other ones so that it appears in the Emails tab of the client.

Is this doable, and if yes how? I could not find the needed information...