Certainly the biggest disappointment of the purchases we made on Appsumo.

We have been working on Getresponse for a long time and the opportunity to benefit from Sendinblue's tools at a reduced price seemed like a good idea. The reality is quite different.

First, we exported our contacts from Getresponse, we cleaned our lists to remove emails that could cause us hard bounces, and we sent our first campaigns with Sendinblue.
Each time we sent them, the account was blocked: Sendinblue decided that the click or open rate was not sufficient to continue using their services, whereas we never had any problems with Getresponse or Mailchimp. Again, the lists have been cleaned up...

Secondly, the emails don't reach our recipients and go into their spam folders, unlike with Getresponse. Our open rate has dropped dramatically since we tested Sendinblue.

Honestly, skip it: you'll waste a lot of time contacting their support and they'll ask you to justify every send.

On the other hand, the price is OK for automations, and we will use Sendinblue only to send automatic emails based on customer actions.

But if you are looking for a tool to send newsletters, forget Sendinblue.