Clarify the agreement that existed
Identify the promise, policy, schedule, ownership, or shared understanding that applies before assigning blame. For a message about how to set a boundary around after hours work messages, use this factual base: describe the request or behavior, its frequency, and the effect on delivery, health, or privacy.
Resolve the next dependency
State what is complete, what remains disputed, and which action would move the situation forward. Propose a workable channel, schedule, scope, or escalation route and document the agreement. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Document without threatening
Do not retaliate, shame a colleague, or refuse essential duties without explaining the operational alternative. Use HR, a representative, occupational health, security, or legal support for harassment, discrimination, threats, or unsafe work. Keep a factual record and describe only remedies you are entitled and prepared to use.