Quota issues
Your may have questions regarding your sending limit. Get solutions for your quota issues.
Why is your quota lower than expected?
If you have a Pro plan but are limited to 400 recipients per 24 hours, it's likely because your Google Workspace account is in a free trial or warm-up period. Google progressively increases sending limits for new Workspace accounts before they reach full capacity.
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.