Thank you for the quick reply. I’ve already tried changing those settings and I have set the limit to the lowest possible (4 emails per second) but it’s not enough to keep it under the limit. I have the free version and possibly the paid one has more settings (per minute / chunk). That is the reason why I added the mail queue plugin as a means for additional email throttling. I guess I will have to find a solution within FluentCRM. Thank you again for your help. The plugin is awesome.