Support for SMTP servers that do not accept AUTH

[cgrard]

Hi there,

I'm in the situation where I need to send emails from Terraform using an internal SMTP server that doesn't support authentication, it relies on the IP address.

A quick look at the code gives me the impression that this provider uses Go's SMTP client, which supports this type of communication, but this doesn't seem to have been implemented in the provider.

Is there a quick solution to my problem?