![]() So, which one should you use? Well, that depends entirely on your use case: The difference between POP and IMAP is that the former downloads emails to local storage, while the latter leaves them on Gmail servers and merely updates their status (read, unread, and so on). Click Save Changes at the bottom to save the new email settings for Gmail.Select the Enable IMAP option in the IMAP access section to turn on IMAP, or select the Enable POP for all mail or Enable POP for mail that arrives from now on option in the POP download section to turn on POP.Go to the Forwarding and POP/IMAP tab.Click the Settings gear icon in the top right and then choose the See all settings option.Log in to your Gmail account on a computer.Here’s how you can check if IMAP or POP is turned on: ![]() □ Tip: When setting up IMAP or POP access to your Gmail inbox on multiple devices, it’s a good idea to configure one device to use IMAP and the other one to use POP. IMAP uploads are limited to 500 MB of email data per day. Gmail lets users download up to 2,500 MB of email data per day using the IMAP protocol or up to 1250 MB of email data per day using the POP protocol. Looking for AOL settings or Outlook email settings? Our Blog's Email Settings category contains specs for all major mail service providers. Gmail POP settings Option Description POP3 Host: POP3 Port: 995 Requires SSL: Yes POP3 Username: Your full email address POP3 Password: Your email account password Gmail IMAP settings Option Description IMAP Host: IMAP Port: 993 Requires SSL: Yes IMAP Username: Your full email address IMAP Password: Your email account password If you want to retrieve email messages sent to your Gmail inbox using a third-party email client, then you need to configure either Gmail POP settings or Gmail IMAP settings. Try for Free Gmail Email Receiving Settings Java is a registered trademark of Oracle and/or its affiliates.Use Clean Email with your Gmail Inbox to keep it clean and organized. For details, see the Google Developers Site Policies. The Libraries and Samples page provides code samples in a variety of popular languages using the SASL XOAUTH2 mechanism with either IMAP or SMTP.Įxcept as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. In addition to the SASL XOAUTH2 protocol documentation, you may also want to read Using OAuth 2.0 to Access Google APIs for further information on implementing an OAuth 2.0 client. As long as these libraries support the Simple Authentication and Security Layer (SASL), they should be compatible with the SASL XOAUTH2 mechanism supported by Gmail. Libraries and SamplesĪccessing mail using IMAP or POP and sending mail using SMTP is often done using existing IMAP and SMTP libraries for convenience. If using OAuth, make sure that the access token used is valid (if you try to use an access token older than 1 hour, it might be invalid). After that, the client can reconnect, authenticate again, and continue. When the time elapses and the session expires, Gmail closes the connection with a message saying that the session expired. A session in this context is one continuous TCP connection. If the session was authenticated using OAuth credentials, it's limited to about the validity period of the access token used (usually 1 hour). Gmail IMAP sessions are limited to about 24 hours. ![]() Gmail POP sessions are limited to about 7 days. If your client begins with plain text, before issuing the STARTTLS command, use port 465 (for SSL), or port 587 (for TLS). The outgoing SMTP server,, supports TLS. Incoming connections to the IMAP server at :993 and the POP server at :995 require SSL. The SASL XOAUTH2 protocol documentation describes the SASL XOAUTH2 mechanism in great detail, and libraries and samples which have implemented the protocol are available. The SASL XOAUTH2 mechanism enables clients to provide OAuth 2.0 credentials for authentication. IMAP, POP, and SMTP use the standard Simple Authentication and Security Layer (SASL), using the built-in the native IMAP AUTHENTICATE, POP AUTH, and SMTP AUTH commands, to authenticate users. The Gmail IMAP, POP, and SMTP servers have been extended to support authorization via the industry-standard OAuth 2.0 protocol. For non-Gmail clients, Gmail supports the standard IMAP, POP, and SMTP protocols. ![]()
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