<p>One of my teachers told me to put my return address on the envelope which he will mail out for my recommendation. Will this be a problem? I thought you were supposed to put your school's address, so I'm unsure about this.</p>
<p>put school's address, or else it looks like you took a peek at it.</p>
<p>Even if the teacher officially seals it with his signature? It's too late now since he already mailed it out =(</p>
<p>It doesn't matter.</p>
<p>Thank you!</p>