Email sending limits and privileges

Administrators can request privileges for users who need to send large numbers of emails.

The number of emails that users can send is restricted by default to prevent the unregulated sending of large numbers of emails. If an email account is hacked it can be used to send large amounts of spam, which could damage your organization's reputation. Your organization could be blocked or otherwise constrained by external internet organizations.

When an account reaches its sending limit it is blocked until its average sending rate drops below the limit. While it is blocked, attempts to send further emails fail and the sent emails are returned with an error. These measures are applied to the affected account, not the whole organization. This prevents interruption to the whole organization.

Where there is a genuine need for users to send large numbers of emails, you can ask Sophos to give bulk email sender privileges to a user.

Bulk email sending limits

Standard users can send a maximum of 400 emails in a 10 minute period or 2,000 emails in 24 hours. A user with bulk email privileges can send up to 3,000 emails in a 10 minute period or 30,000 in 24 hours.

You can only give bulk email sender privileges to a maximum of 5% of your organization's users.

Applying for bulk sender privileges

In Email Gateway > Mailboxes select a user and click Request bulk sender privileges. If bulk sender privileges have already been asked for or granted for that user, a status message appears.

Note If Bulk email sender privileges does not appear, click on Settings > Domains settings/status and check that the domain is set to Inbound and Outbound.

Fill in and submit the form with the required information. The request will be reviewed by Sophos within 72 hours.

You can also remove bulk sender privileges, without a Sophos review.

Monitoring bulk sending privileges

Mailboxes have a Bulk email sender privileges section in Email Gateway > Mailboxes. This shows the status of a privilege application.

In Alerts you can see users that have reached their email sending limits. You can also change the frequency of alerts for a user.