In the fall of 2020, teachers in Oman used Mandarah for teaching for the first time. This research will focus on understanding and analysing English teachers' attitudes and reactions to teaching English online through Mandarah. To depict their attitudes, I used the triangulation method, using a questionnaire and interview. This research showed that 64 out of 106 teachers shared that using Mandarah in teaching was a difficult experience and they were not satisfied with it at all.