deliver

type LMTPOptions struct {
	// Network can be `unix`, `tcp`, `tcp4` or `tcp6`
	Network string
	// Address shows where we connect
	Address string
	// LHLO is greeting to LMTP server
	LHLO string
	// Timeout limits time of LMTP server interactions
	Timeout time.Duration
}

type SMTPProxyOptions struct {
	// Network defines how we dial SMTP Proxy, can be tcp or unix
	Network string
	// Address defines where remote SMTP Proxy is available
	Address string
	// HELO sets greeting for remote server
	HELO string
	// TLS, if not null, enables STARTTLS with this options
	TLS *tls.Config
	// Auth sets authentication mechanism for proxy backend
	Auth smtp.Auth
	// MailFrom defines senders override, if empty, value from Transaction.MailFrom will be used
	MailFrom string
	// RcptTo defines recipients' override, if empty, values from Transaction.Aliases or Transaction.RcptTo will be used
	RcptTo []string
}

type SendmailOptions struct {
	// PathToExecutable
	PathToExecutable string
	// UseMinusTFlag
	UseMinusTFlag bool
}