Slow (no more than 7 per minute) sent emails in a status update for many situation

Question

We have a new Exchange 2010 system and the need of nightly status for a large number of customers.
Initially, I simply increased the number of mails the involved email accounts could send and that allowed them to deliver.
The problem then was/is that they are still limited to about 7 mails per minute.
At this stage I increased the connection throttling from 20 to 2000, though the average of 7/min is still the norm.
Here are commands I used for throttling increase:
New-ThrottlingPolicy -name 2000EmailMaxConcurr -RCAMaxConcurrency 2000
Set-Mailbox address1 -ThrottlingPolicy 2000EmailMaxConcurr
Set-Mailbox address2 -ThrottlingPolicy 2000EmailMaxConcurr
have read of other efforts, but though assistance rather then cluttered rule implementation was in order.
Anyone have a similar issue and solution?
In my last mass mailing instance, a 2003 installation, I do not recall having to alter the default to allow more than 7 emails per minute from an address.
Thank you in advance for any assistance-
Stuart
Stuart TechnoFile

Answer 1

Ed,
Yesterday I confirmed ThrottlingPolicy of -RCAMaxConcurrency $null applied to
the appropriate email addresses.
This morning, the report of Monday night's emails stil listed 7 per minute.
Time Started
Time Ended
Emails Sent
Total Minutes
Average Emails Sent Per Minute
10/14/2014 12:30:37 AM
10/14/2014 8:46:24 AM
3734
496
7
As you can imagine, this is creaping into normal business hours and that is undesirable.
What can I try next?
Thanks-
Stuart
Stuart TechnoFile