Account for the relationship as it is now
Use a tone that fits the present relationship, not the closeness, authority, or access that existed in the past. For a message about how to thank someone for giving you a reference, use this factual base: name what the person did, when it mattered, and the practical or emotional difference it made.
Ask without assigning an obligation
Explain what you hope for while making decline, delay, or a different format genuinely acceptable. Thank them directly and share one honest outcome they helped make possible. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Keep the ending honest
Do not exaggerate, create a public spotlight without consent, or attach a new favor to the same message. Protect private health, financial, workplace, and family information when describing their help. Avoid future promises, guilt, flattery, or nostalgia that imply the recipient owes you access.