Module Spool.Send
val retry_intervals : Async_smtp.Smtp_envelope.Retry_interval.t list Common.Command.Param.t
val param : Async_smtp.Smtp_spool.Send_info.t Common.Command.Param.t
val dispatch : ?retry_intervals:Async_smtp.Smtp_envelope.Retry_interval.t list -> Async_smtp.Smtp_spool.Send_info.t -> Async.Rpc.Connection.t -> unit Async.Deferred.t