Dear teachers,<br/><br/>1. Message me <span style="color:#ff00ff;">on/at</span> 123456.<br/><br/>2. Send an email at <span class="_ac erm">Email Removed</span> or send me an email at <span class="_ac erm">Email Removed</span>. Are my both sentences correct here?<br/><br/>Thank you so much,<br/><br/>Shravan.