mailman

type Address struct {
	Name  string
	Email string
}

type Config struct {
	From   *Address
	Domain string
}

type Content struct {
	Subject   *bytes.Buffer
	HtmlBody  *bytes.Buffer
	PlainBody *bytes.Buffer
}

type Mailer interface {
	Config() *Config
	Send(to *Address, content *Content, vars *MergeVars) error
}

type MergeVars struct {
	SubjectVars map[string]string
	BodyVars    map[string]string
}

type Template struct {
	Subject   *template.Template
	HtmlBody  *template.Template
	PlainBody *template.Template
}