The FYI Section

The FYI section contains information that is useful but is to general to be included in a particular blog post.

Difference between POP and SMTP

IMAP copies the folders present on the server locally ( email client like  Outlook & Thunderbird).
So if you create a folder called office in your email client, the same folder gets created in the Gmail account.

POP is more dangerous than IMAP as if you delete the messages on your mobile phone, it gets deleted on the server too.

(Source : https://support.google.com/mail/bin/static.py?hl=en&ts=1668960&page=ts.cs)