Mautic not sending email more than 100

I have configured mautic correctly and all of it’s functions are running smoothly. All the cron jobs have been scheduled as asked.



But at one point I am having trouble, When I send Bulk email to say about 500 leads which I have imported, then only approx 100 emails are sent and after that rest all the emails are failed.



I have configured gmail smtp and I send email in batch of 100. I tried increasing the size of batch but it does the same.



Can anyone help please?

I have configured mautic correctly and all of it’s functions are running smoothly. All the cron jobs have been scheduled as asked.

But at one point I am having trouble, When I send Bulk email to say about 500 leads which I have imported, then only approx 100 emails are sent and after that rest all the emails are failed.

I have configured gmail smtp and I send email in batch of 100. I tried increasing the size of batch but it does the same.

Can anyone help please?

Thanks for the solution