Email providers have sending limits to prevent spam, protect their server reputation, and prevent hacked accounts from sending large numbers of emails. If you intend to send more than the daily limit of emails for marketing purposes, consider using one of Wealthbox's marketing integrations. These businesses will add the email address that sends the emails to a protected list so it does not get blocked as spam.
If you intend to proceed without a marketing integration, be aware that sending too many emails may flag your account as spam.
Gmail – limited to approximately 120 messages per day
GSuite – limited to approximately 500 messages per day
Outlook.com – limited to 100-300 messages per day
Exchange server – limits depend on the settings
IMAP – limits depend on the server