When you choose GoWireless Lite for Send Via, you must provide connection information for your own email server. Using your own email server decreases the possibility of photos being treated as spam when they are delivered.
Every outgoing SMTP mail server is affected by a provider’s email policy, which includes hourly and/or daily email send limits. This policy will ultimately determine how many emails (photos) you can send each day. If you exceed your provider’s daily SMTP email sending limits, you will usually have to wait 24 hours before you can send more email through that particular server.
For example, Gmail’s SMTP allows you to send 2,000 emails daily. If you specify 4 recipient email addresses, that means you can send 500 photos a day. When the limit is met, your camera will stop sending pictures.
Below is a screenshot of the Gmail daily limit information page.