A SECOND senior official resigned from the Post Office on Wednesday, only a day after the resignation of the institution’s senior financial general manager. The Post Office said in a statment that Doug Smit, the general manager of Speed Services, will be temporarily replaced by Steve Gill. The senior manager of the Post Office’s communications department, Ben Rootman, has denied Smit had resigned because there is internal conflict in the company, saying. “People do resign from time to time,” he said. He said Smit has not given a reason for resigning. The Post Office’s senior financial manager, Albert Michau, resigned on Tuesday.