About MailerSend Rate Limits Handling

Hello,

I’m using this plugin to send emails through a MailerSend API key (paid Hobby plan).
I send campaigns with FluentCRM and may need to launch up to 1500 emails at once.

1. I would like to know whether the free version of the plugin automatically handles MailerSend sending rate limits when the allowed quota is exceeded at a given moment.
2. If not, what would be the best way to handle this (for example through a cron job or a queue system)?

Thanks in advance.