This research is interested in the role that mentoring can play as a strategy for academic and professional support in the academic internships of undergraduate students of a marketing program in a Colombian university, aiming to validate an e-mentoring model to stimulate the acquisition of professional competencies in students of academic internships. Thus, a quantitative approach-related group pre-posttest experimental type study (a pilot study) was carried out to validate the e-mentoring program. The sample consisted of 18 mentees with their respective 18 mentors, who were evaluated in three different phases (pretest mentee, posttest mentees, and posttest mentors). The results showed positive results, especially in four distinctive competencies (project management, problem-solving, autonomous work, and teamwork). On the other hand, the mentors confirmed elements associated with high satisfaction with the e-mentoring program through its design, purpose, the training provided, and the level of professional, logistical, and technological support.