I graduated a year ago and recently emailed my undergraduate dissertation supervisor to ask if she would be able to be one of my academic references for some applications.
I emailed last week to ask this which was four weeks before the deadline. It has been exactly a week and I have not yet had a reply and now that puts it at three weeks before the application deadline.
This lecturer is the one who knows me best academically as they were my supervisor, work in the area I am hoping to go into and they taught me during all the relevant modules. However they are also very senior and very busy so I was anticipating there would be a delay in their response and I completely understand.
When would it be polite to send a reminder? Should I just forward the original email or write a new one?