When using a Google account to send emails in large volumes, there are certain limitations to be aware of. Google imposes limits on the number of emails you can send per day, as well as the maximum number of recipients you can include in a single email. These limits are in place to prevent spam and abuse. If you need to send emails at a large volume, it's recommended to use third-party email sending services or SMTP providers that specialize in high-volume email delivery.