I got home tonight, and went to the mailbox like I always do to get my pile of mail. There's one group of mailboxes for the community where everyone gets their mail. It's split into thirds- 2 for regular mail with 20 or so individual boxes each, and 1 with 4 large boxes for when you get mail too big for your regular box. When they put a packsge in the large mailbox, they put a corresponding key in your regular box so you know to get your package.
Anyway, I parked and was approaching the mailbox when I noticed one had the door missing. As I got closer, I realized it was the one where people put their outgoing mail. I put my key in my mailbox to open it, and realized the entire front of the unit was loose. I had NO MAIL in mine, the first time that has ever happened.
The front of the unit had been broken out, and was able to be opened almost all the way. There was no mail in anyone's box.

I'm expecting some important mail, including a couple of money orders, and a few packages. 2 of the packages contain Molle Gear.
I'm afraid somebody broke in after the mail got delivered, and swiped my mail.

Does the post office have a record of any type of what was delivered today?

What should I do? I'm not certain there was even any mail left for me, but I've got a sinking feeling about it. If a thief found a box of Molle Gear with my street address on it, they may be coming back.

I'll call the head of the Homeowners Association first thing in the morning, and find out what he knows. He also lives directly across from the mailboxes.

In the meantime, how can I find out if my mail was left today or not? I figure if the mail carrier came and the boxes were already broken into, they wouldn't leave mail since it would be left in the open...

Call the police.  This is a federal offense, but it's usually not taken seriously.  Watch your six.

Update:

We got an e-mail from the head of the HOA:

==================================
Attention homeowners....

There was a "attempted" break in of the mailboxes last night (Wed).
I came out to put up Old Glory and noticed there appeared that someone
left one of their own mailboxes open, thus I made my way over to try to
close it or at least make it look closed. However, when I got there
someone
had pryed the entire lock off the left half of the mailboxes (the
neighborhood it split in two sections and the left section is boken). I
don't recall what lot numbers are affected. I would imagine lot # 1 through
around 30-ish. If you cannot get your mail, then please contact your
neighbor (see, important to know your neighbor) and have him/her pick
it up for you.

The fortunate thing is that the "idiot" completely pryed the lock off,
however was stupid enough not to know how to get the entire door open,
I did, however and there was mail remaining in some of the slots. This
lead me to believe that they did not get into the openings themselves.

I have spoken with XXXXXXX (the property manager) and he is
currently looking into getting the lock repaired. I highly recommend that you
empty your mail EVERY night in order to thwart your mail from being
stolen again someother night in the future. If going out-of-town, have your
neighbor pick it up for you or have it held at the post office.

======================

Whew.
It looks like the mail didn't get left then. [:D]
I'll get it cleared up at the post office tomorrow. I doubt they'll leave mail in an open box...

Thanks for the advice guys. I've got my fingers crossed, and I'll make a few phone calls in the morning.

I spoke with the post office and the mail carrier today. They haven't left any mail in the box since the break-in, and it should be fixed by tomorrow. Hopefully they'll try to deliver tomorrow when I'm home.

This is why I NEVER send outgoing mail from home. I always drop it off at the post office.

This has been a bit of a hassle, but it could have been a LOT worse. I'm fortunate I guess...

[:K]