I have a large community, using Invision ans SparkPost (aprox. 75k users) https://www.projetoacbr.com.br/forum/
Currently I'm using Callum MacGregor plugin...
I'm very interested on these feature of your appication: "Integrate Bulk Mail with SparkPost campaigns"
Can you please provide more information about this ?
Is it possible to measure a campaign statistics, in SparkPost, using these feature ?
My community takes approximately 2 hour to send 55k e-mails... Your application goes to Background Tasks, when running ?
I also use Mail Bouncer application: https://invisioncommunity.com/clients/purchases/64928-mail-bouncer/
Is your application compatible with it ?