SMU will not appeal the NCAA postseason ban and also a nine-game suspension handed down to Mustangs coach Larry Brown in September.
An investigation concluded that SMU committed multiple violations, including academic fraud and unethical conduct.
The school will, however, appeal the duration of scholarship losses in men's basketball and men's golf, the duration of the recruiting restrictions in men's basketball, and the vacating of men's basketball victories during the 2013-14 season due to the participation of an ineligible player.
"The fact that NCAA violations happened on my watch is something that I regret and take very seriously," Brown said in a statement released by the school Friday. "I am committed to winning with integrity and we must -- and we will -- do better. While the decision to not appeal our postseason ban was made in the best interests of the program, I am truly disappointed for our student-athletes who are the most impacted by the penalties and who had nothing to do with the infractions. Our young men need your support now more than ever, and I am confident that the Mustang family will respond."
In addition to the major penalties, others sanctions levied against SMU included: off-campus recruiting was cut by 20 days, along with a reduction in permissible phone calls and communications with recruits; the school will not be allowed any unofficial visits during the summer of 2016; a vacation of wins during which Frazier played while ineligible. SMU had 15 days to notify the NCAA of its appeal.
SMU president R. Gerald Turner sent a letter to the SMU community that said, in part: "Although we regret the severe impact on our student-athletes, the simple fact is that the NCAA penalty structure mandates at minimum a one-year postseason ban for the level of misconduct that occurred, in our case, when a former staff member completed an online high school course for a prospective student-athlete, committing academic misconduct.
"In addition, should we appeal this matter, the lengthy process and uncertainty during this period could harm many aspects of the program. Coach Brown and his staff also agree that it is in the best interests of the program to accept these sanctions and move forward."
Part of the investigation at SMU stemmed from whether former basketball administrator and ex-assistant coach Ulric Maligi helped Keith Frazier to become eligible to play there, a source previously told ESPN. The NCAA did not reveal any names when announcing the sanctions but did say a former assistant coach encouraged an athlete to enroll in an online course to meet NCAA initial eligibility standards and be admitted to the university.
The NCAA also said a former men's basketball administrative assistant hired by Brown then completed the coursework; she then provided false information to NCAA investigators and also attempted to influence the player to also provide false information.
"The student-athlete received fraudulent credit for the course and, as a result, competed while ineligible during his freshman season," the NCAA said.
Maligi, who took a leave of absence in the middle of last season, was not found to be involved after the NCAA investigation.
A source said the former basketball administrator did not agree to speak with the NCAA. The administrative assistant resigned in September 2014, SMU said.