In order to protect your email address and your domain reputation, each sending address has a Daily Sending Limit. This is the maximum number of emails Prospect.io will send per day through that address.
The maximum number of emails you can send depends on your pricing plan: Essential - 400, Business - 1500 emails per day per sending address. In order to send more emails, you should dispatch them on several sending addresses.
What is my sending limit and how to change it?
Navigate to the Settings > Mails > Sending Addresses tab.
Click the Edit button in the Max. emails/day field.
Choose the maximum number from the drop-down menu and click the Save button.
CNAME and sending limit
If you don’t have the CNAME set up in your account, the maximum daily limit for your sending address is 50 emails. We enforce this limit in order to preserve your email account. Sending more than 50 emails per day with the CNAME not configured, the emails you send might be considered as SPAM by the recipient's server or your email service provider may prevent you from sending more emails.
Configure the CNAME to set a higher sending limit.
A note about Gmail/GSuite
Gmail allows you to send up to 500 emails per day.
GSuite allows 2.000 emails per day.
Remember that this is the maximum total number of emails you can send on a 24-hour window. This limit also includes emails sent from outside Prospect.io (from your email client, or directly from Gmail for example).
More information about Google's limits: