> On Oct 2, 2017, at 11:47 AM, Noel Jones <[email protected]> wrote:
>
> Note this may *severely* delay deliveries, depending on the sender's
> retry policy. If a message arrives with 100 recipients, the sender
> will need to retry 99 times, which will likely take a very long time.
It violates SMTP standards. Interoperable SMTP servers are required
to accept up to 100 recipients per envelope (message delivery).
Do not cripple SMTP. Make sure your anti-abuse measures do not impede
legitimate email. Avoid techniques that impose behaviour changes on
legitimate email senders.
--
Viktor.
