Quota Issues
Your may have questions regarding your sending limit. Get solutions for your quota issues.
Why is your quota lower than expected?
The allotted daily quota depends on the plan you choose (free or paid plan). In some specific cases, you won't be able to use all your quota because of Google restrictions.
I don't have enough quota to complete my mail merge
If you don't have enough quota because you've already sent some emails in the past 24 hours or because your campaign is too big, you'll have two options depending on your plan. Read this article to learn more.