Understanding POP3
POP3 (Post Office Protocol 3) is the latest version of the standard protocol for receiving email. POP3 is a client / server protocol where email is sent from the server to local email. Used to communicate with e-mail servers and download all e-mail to local e-mail (such as Outlook, Thunderbird, Windows Mail, Mac Mail, and so on), without storing them on the server. Usually, in an email application there is an option to keep the downloadable email on the server or not.
If you access the same e-mail from different devices, we are very helpful for you to keep a backup. This needs to be done as a precaution, such as the second device does not download the email, while the first device has deleted it.
POP3 is a one-way communication protocol, which means data is retrieved from the server and sent to local e-mail on your computer device.
Default POP3 port
- Port 110 - Unencrypted port
- Port 995 - SSL / TLS port, other names POP3S
Pros of Using POP3
- Once the email can be downloaded by the local mail application on your computer, you don't need to be connected to the internet and you want to open it again.
- Mostly there is no size limit for sent and received email.
- Can open file attachments quickly.
- There is no maximum size for a mailbox, unless your computer hard drive is full.
Disadvantages of Using POP3
- If JavaScript in the email reader is enabled, phishing emails with JavaScript embeds can be read in the email.
- All messages will be saved on the computer. This can reduce space on the computer hard drive.
- All file attachments are stored and stored on the computer. Therefore, the potential for computer virus infection from email is greater.
- Email folders sometimes get lost. If this is the case, recovery efforts are quite difficult.
