As with our previous e-mail system, the new Colby Apps powered by Google has limits when it comes to some aspects of e-mail. Below are some of the limits that are in place:

  • You may not exceed 2,000 external recipients ( addresses in To:, CC: or BCC:) in a 24-hour period.
  • If you are using an e-mail client (Outlook or Entourage) you may not exceed 100 recipients per e-mail.
  • If you are using the Colby Apps webmail interface ( you may not exceed 500 recipients per e-mail.
  • The total size of all attachments in one e-mail may not exceed 10mb.

Note: if you need to send files over 10mb, you can use the Colby Dropbox service by logging into