Should I mention where I'm going?
Optional. Some people share, some don't. If your new role is in a related industry or you want former colleagues to follow your career, share it briefly. If unsure, leave it out.
When should I send it?
Late morning on your last day — after the standup but before lunch. Sending too early disrupts the day; sending after hours feels rushed.
What if I'm leaving on bad terms?
Send a shorter, more neutral version anyway. Even on bad terms, a warm farewell preserves individual relationships you might need later. Vent in private, not in writing to the company.
Should I send to the CEO?
For large companies, no — they probably don't know you well. For small companies under 50, yes — it's a small courtesy that's remembered.
Can I attach photos or fun stuff?
A short embedded GIF or a single team photo is fine for close teams. Avoid for formal / large companies. Keep it short either way.