Zarif referred to Steinmeier as an outstanding politician and an advocate of global peace and dialogue, IRNA reported.
He hoped that the German President-elect would be the source of valuable services to his country in his new post as he was when he served as the German foreign minister.
Zarif also said he is optimistic that Iran-Germany strong relations will further improve during Steinmeier tenure.
The German Bundesrat (literally 'Federal Council';) elected former foreign minister Steinmeier as the country’s new president on Sunday.
EghtesadOnline: Foreign Minister in a message on Sunday congratulated Walter Steinmeier on his election as new German president.