Make the first sentence usable
Lead with the reason for writing so the recipient does not have to decode a long emotional introduction. For a message about how to reconnect with relatives who live overseas, use this factual base: identify the relationship, last meaningful contact, and any conflict or uncertainty that should be acknowledged.
Reduce the work of responding
Offer simple options, a narrow question, or a clear update that can be understood without another conversation. Offer one limited next step and make no response or slower contact an acceptable outcome. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Respect the boundary already visible
Do not recruit relatives, use children, invoke illness, or attach an inheritance issue to emotional pressure. Respect court orders and safety plans, and use a neutral professional route for abuse, estate, or custody disputes. A block, explicit refusal, legal restriction, or safety plan takes priority over the desire to explain more.