Once your inbox reaches 1GB you will be unable to send to receive E-mail.
To find your limit, please log into our Webmail client.
Click the icon in the upper right corner, then click Accounts. Hover your mouse over the Disk Quota.
Incoming Attachment Limit
This is how large of a file you can receive from someone to your inbox. If the person sends a file more than this limit they will receive a failure due to the file size.
Outgoing Attachment Limit
This is the total size of your E-mail going to an address. If too late you will receive a failure due to size being exceeded.
Depending on your E-mail client settings, these are the total limit of people you can send per message and how many you can send per hour.