Answer: The relationships with other nations during the regime of the Safavid rule.
Explanation: There weren't any designated foreign affairs institution. This part of the management was in the hands of the Shah (emperor) and vizier (minister of the emperor's court).
They used envoys to reach out to other nations for trade and commerce and other help in times of need such as war and other calamity. A representative who was sent was given standing instructions for the purpose he was sent to other nations.
The nature of letter and requests to be sent would be recorded in relevant documents. it also stated the time of writing and arrival of the document in the hands of the leader of the other nations. this was the nature of correspondence and negotiations would follow thus.
Later on permanent embassies with envoys were established and they had foreign relations with countries such as Great Britain, Russia, Ottoman Turkey.