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  2. What is the difference between POP3 and IMAP? - AOL Help

    help.aol.com/articles/what-is-the-difference...

    IMAP (Internet Messaging Access Protocol) • Emails are stored on the server. • Sent messages are stored on the server. • Messages can be synced and accessed across multiple devices. POP3 (Post Office Protocol) • Emails are stored on a single device. • Sent messages are stored on a single device. • Emails can only be accessed from a ...

  3. Post Office Protocol - Wikipedia

    en.wikipedia.org/wiki/Post_Office_Protocol

    In computing, the Post Office Protocol ( POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. [1] Today, POP version 3 ( POP3) is the most commonly used version. Together with IMAP, it is one of the most common protocols for email retrieval.

  4. Use POP or IMAP to sync AOL Mail on a third-party app or ...

    help.aol.com/articles/how-do-i-use-other-email...

    There are two different protocols you can choose when setting up a third-party email app: POP or IMAP. POP downloads a copy of your emails from your account (mail.aol.com) to the app. This means that if you delete an email from your account after it's been downloaded, the downloaded copy remains in the app. Additionally, POP only downloads ...

  5. Push email - Wikipedia

    en.wikipedia.org/wiki/Push_email

    Push email is an email system that provides an always-on capability, in which when new email arrives at the mail delivery agent (MDA) (commonly called mail server), it is immediately, actively transferred ( pushed) by the MDA to the mail user agent (MUA), also called the email client, so that the end-user can see incoming email immediately.

  6. Internet Message Access Protocol - Wikipedia

    en.wikipedia.org/wiki/Internet_Message_Access...

    t. e. In computing, the Internet Message Access Protocol ( IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. [1] IMAP is defined by RFC 9051 . IMAP was designed with the goal of permitting complete management of an email box by multiple email clients, therefore ...

  7. Persistent organic pollutant - Wikipedia

    en.wikipedia.org/wiki/Persistent_organic_pollutant

    Environment portal. Ecology portal. v. t. e. Persistent organic pollutants ( POPs) are organic compounds that are resistant to degradation through chemical, biological, and photolytic processes. [1] They are toxic and adversely affect human health and the environment around the world. Because they can be transported by wind and water, most POPs ...

  8. Why Is My Poop Black? 7 Causes of Black or Tarry Stool - WebMD

    www.webmd.com/digestive-disorders/black-tarry...

    A bleeding ulcer is the most common concerning cause of dark stools. An ulcer is an open sore on the inside of your stomach or small intestine. Sometimes these sores bleed. This can make your poop ...

  9. Email - Wikipedia

    en.wikipedia.org/wiki/Email

    POP3 email servers. The Post Office Protocol 3 (POP3) is a mail access protocol used by a client application to read messages from the mail server. Received messages are often deleted from the server. POP supports simple download-and-delete requirements for access to remote mailboxes (termed maildrop in the POP RFC's).