Should I send email expressing my gratitude to professors who provided me with letters of recommendation? I have asked for LORs from two professors that I haven't cooperated in the past and they were happy to provide them. Now, I've been admitted in the MSc program I was interested in. Should I write an email to them, in order to express my gratitude because of their help in earning this admission?
I think a short, cordial email informing the letter writers of your admittance and thanking them for their help and contribution to such an outcome is absolutely appropriate.