Mailtrack campaigns let you send up to 10,000 emails (2,000 per day during 5 days), but take into account that the maximum number of emails you can send, though, depends on the specific limits Google has placed on your Gmail account. Please check your sending limit with Google.
Please note that if Google identifies potentially suspicious activity, such as suspected spam, violations of their terms of service, or high bounce rates, your emails will be blocked even if you haven't reached the official limits. Google does not specify the exact reasons for these actions, and unfortunately, we cannot intervene from Mailtrack.
At Mailtrack, we use Gmail's sending service to guarantee you the highest deliverability. For this reason, if you encounter any issues with sending limits, you'll need to reach out to Google for resolution.
See also:
Sending errors and problems (blocked, bounced or rejected)