What is the function of the "Send email via Gmail" option?

What is the purpose of the Send email via Gmail option?

The Send email via Gmail option applies only to Support addresses that use the Gmail connector.

If connected to Google Mail appears to the right of an external support address, that support address uses the Gmail connector.

When you select this option, Google mail servers send all ticket and system notifications from your Gmail account instead of Support mail servers. You do not need to set up Sender Policy Framework (SPF) or DomainKeys Identified Mail (DKIM) to authorize Support to send email on your behalf because Gmail sends the messages directly from your account. You can find all notifications in the Sent folder in your Gmail account.

Google sets daily send limits and limits recipients per message. If you approach a limit, you receive a warning and Support mail servers temporarily send notifications instead of Google mail servers.

If none of your support addresses use the Gmail connector, the Send email via Gmail option does not affect your notifications. Support mail servers continue to send notifications. This option matters only if one or more of your support addresses connects through the Gmail connector.

If you turn on the Send email via Gmail feature, you can use linked attachments only. If you have attachments enabled, Support mail servers send email notifications with real attachments instead.