There is not clear explanation between deliver & deliver_now in rails mailers.
if we use deliver_now it won't queue up for an active job. if we use deliver_later it will be executed by active_job (background job).
when deliver & deliver_now are not executed in the background, then what exactly the difference between them? I searched a lot but did not get a clear idea. between deliver and deliver_now.
is there any difference or both are the same