Brevo Sendinblue by Combidesk

Do not use this app. Horrible customer service. We installed this app hoping to start our email marketing campaigns with a more affordable option as we have been using other platforms which were getting expensive. They decided to "deny" our account offering no explanation other than that our account had a 'problematic' history even though we never received any complaints or flagging for spamming and only send to customers who opt into our newsletter. Very unhappy with the way their customer service is handling things and would not even consider them now even if they approved us. Stay away and listen to the negative and scarce reviews here.

This app imports bot (fake) accounts from Shopify and messed up our Black Friday campaign causing thousands in lost sales. They will not take responsibility for it either. No support on Black Friday to fix it, really?
We managed our SendingBlue account manually and it's as simple as importing accounts who actually placed an order as opposed to taking everything in. If you can't tell a robot-created account from a real one, then find another job.
Stay away from this company.