Folders, labels, or tags. Folders and labels allow you to sort incoming emails into categories. Priority icons. Priority icons, such as stars or arrows, give you another level of organization.
Most emails you receive go directly to your inbox. You select which emails to read and which to trash at this point. However, if your server cannot identify the sender's address, it will likely place the email in the spam mail folder. All of those obnoxious advertisements often appear here. However, occasionally there are nice emails as well, so keep checking.
Do you ever worry after accidentally deleting an email? Do not panic; simply check the Trash folder. Most likely, it's still there.