How to increase "no immediate delivery: more than 10 messages received in one connection" limit

Hello,

I am using HestiaCP with Exim and I am getting the following error:

no immediate delivery: more than 10 messages received in one connection

It looks like Exim limits the number of messages per SMTP connection to 10.

Could someone please tell me how to increase this limit in HestiaCP / Exim configuration?

Thank you.

It was enough to add in Panel → Exim → Configuration, for example: smtp_accept_queue_per_connection = 500.