What to Do When an Employee Leaves and Has Important Email

When an employee leaves, their mailbox may contain customer messages, invoices, contracts, scheduling details, or important business history.

Why this matters

The business needs to protect the mailbox, preserve important information, and remove the former employee's access.

A clear email offboarding process helps avoid lost messages, insecure forwarding, unnecessary licenses, and confusion.

Common signs of the problem

Small businesses usually notice the issue through daily confusion, delays, repeated support requests, or security gaps.

• Managers are unsure who should receive the employee's messages.
• Mailbox forwarding is set up without documentation.
• Former employee accounts remain active.
• Important email is tied to one person's mailbox.
• Licenses remain assigned after the employee leaves.

What to review first

Start with the items below. The goal is to create a clear, practical process that can be repeated.

1. Secure or disable the employee account at the correct time.
2. Decide whether mailbox access, forwarding, or preservation is needed.
3. Document who approved mailbox access.
4. Review aliases and shared mailboxes.
5. Remove unnecessary licenses.
6. Update business contacts if needed.
7. Document completion of email offboarding.

How J3 Systems Group LLC can help

J3 Systems Group LLC helps small businesses and nonprofits set up, secure, and clean up business email across Microsoft 365 and Google Workspace.

Support can include email account setup, shared mailbox setup, aliases, forwarding reviews, phishing risk reduction, offboarding cleanup, and business email documentation.

Next steps

Review your current setup, identify the gaps that create the most risk or confusion, and decide which item should be cleaned up first.