Etiquette about emailing professors.

<p>Hi guys,</p>

<p>The background is this.
I researched for a professor out in California over this summer (I am at texas now). 4 Days ago, I emailed him asking for letters for recommendation.</p>

<p>As of now, I have yet to hear any reply from him.
So my question is this, how long do I wait before I send him 2nd email to ask him for letters of recommendation again?</p>

<p>thanks.</p>

<p>or should I call him directly?
I have never called a professor over the phone, so I don't know if this is a correct way to do things.</p>

<p>I would probably call him. :) You never know if your email accidentally got caught in a spam filter or something.</p>

<p>yeah, just call him and say that you're checking whether you have the correct email address for him, since you weren't sure it got through.</p>

<p>I know profs who don't even read e-mails unless they know who it's from, so yeah, call.</p>

<p>Hi fobby jon!</p>

<p>I sent a second email to my professors after two weeks of no response. One still hasn't replied while another claimed that he has replied but probably didn't get through (I'm sure he was just too busy and forgot). Even still, the second attempt look him a couple of days to reply to. Keep in mind that midterms and/or projects are happening right about now and most likely, they are busy. I've worked with both of them for quite a long time and know them personally, I understand what they go through. Even when I was doing something for their class/projects they would take a while to respond. Just call and tell them you understand they're busy (especially during this time) and would like to check to see if they had time to review your email or if they missed it. Professors get a lot of spam due to the fact that their email address is posted up on random webpages. My school email was on a couple of class webpages and got 100 emails a day before my school created a spam filter.</p>

<p>Warm Regards,
your canto friend</p>