When using Gmail, most time you search messages from the inbox, but sometimes you might have to search the spam or trash boxes for some important messages that you mistakenly assigned to a wrong box. Please see below for details:
Step 1: Login your Gmail account (please refer here to open one if you do not have an account yet);
Step 2: Click the triangle at the end of the search box;
Step 3: Type as many as information in each box, and select the "Trash" box to search in the trash box;
Step 4: Select the "Spam" box to search in the spam box;
Step 5: Click the "Search" button to have the messages list.
