I am applying to thesis based Master's degree programs (in Canada/USA) and I have checked the profiles some faculties. Some faculties mention not to email them and just mention them in my statement of purpose/application form, some have asked to email them some details about myself such as CV and why I want to work with them, but for some, it just says they might not reply as they get a lot of emails, without giving any strict position on emailing them.
In the last case, should I email them for their later reference when they might come across my admission details and might want to check other details about me(without expecting a response) or does that mean I should not email them.