I have locally installed an exchange server 2013 and have come across a problem that I need some advice on how to resolve if possible. We need to regularly send out emails to a membership with over 1500 contacts and have found that we can only send out 5 emails at a time and need to wait 30 seconds before sending out another 5 emails. The email attachments are on 30K in size so I'm not sure if this assists in understanding the problem. I have been searching and found lots of articles relating to 365 and the limits set on recipients and sender limits and need to know if that affects the standard 2013 release as well. Given that its a local install can I change these limits to allow the mail to flow as it used to in the older versions and if so how? Any advice would be appreciated?
Allan
AllanH