Our ISP only accepts 5 emails per transmission. If I do a manual send (route *), then I usually get the error:
57 Retry( 2) SMTP [$Retry MY_ISP.COM] (Push) Last error: 421 4.4.2 Message submission rate for this client has exceeded the configured limit Next retry: 14/07/2014 08:46:21 AM
The retry interval appears to be 30 minutes after I do a 'route *'. I would like it to retry again in less time.
I have checked the configuration document Router/SMTP > Restrictions and Controls > Transfer Controls > Initial transfer retry interval - this is set to 15 minutes.
I have asked the ISP if they can change their config to accept more emails but do not expect this to change. If we send bulk emails then this causes a delay in mail sending.
Can anyone advise: - Why the interval is 30 mins instead of 15 mins (as configured)? - Can I change it to retry every 5 mins? - Any pearls of wisdom?