We recommend turning on two-factor authentication and using an app password. Next configure email. 5-10 sec just for response, maybe you are connecting to an imap server which is advertising GSSAPI auth mechanism. Fix: On the Advanced tab of your POP email client program, enable This server requires an encrypted connection (SSL) for the POP server. Gmail POP3 Settings. AUTH LOGIN is advertised as supported in the response to the EHLO command, but when I'm trying to send AUTH LOGIN to the server, I'm getting "504 5. Mar 15, 2008 · Account: 'george3slist', Server: 'pop. com) but get the following error: "Server denied POP3 access for the given username and password. As of December 2012, Google's Gmail servers are configured not to connect to remote POP3 servers that have either no certificate or a self-signed certificate. net and outbound. The SASL XOAUTH2 mechanism Aug 09, 2019 · Still working with gmail: Make sure IMAP is enabled on your account Create an App password Under Custom IMAP server input imap. In addition to a free version, Gmail also offers a paid version as part of the Google Apps for Business plan. 5. Test your mail application again. Gmail POP3 server address is pop. also have already changed the gmail account to accept less secure devices, and it has imap and pop. 8 Sep 2019 This tutorial video will show you step by step how to fix the “Server denied POP3 access for the given username and password” error on Gmail  To fix this issue, please generate application specific password for your Zoho account (by referring this link) and update the same in incoming and outgoing server  Solve the Gmail “Server denied POP3 access for the given username and password” error. Your username and/or password is not correct, double-check them ad remember passwords are CaSe SeNSiTiVe! Password error: [AUTH] Web login required See this article Error: 0 could not connect to the host "pop. Then go to Settings and click on the Forwarding and POP/IMAP tab. Navigate to Outgoing Server tab, click and select ‘ My Outgoing Server (SMTP) requires Authentication ‘ Jul 07, 2012 · My gmail account says there is a Authentication error! Help I am unabl to get into my email! I have important - Answered by a verified Email technician Dec 29, 2017 · Additionally, the POP server rather than being pop. Another part of the error is: “Server returned error: “ [AUTH] Authentication failed. com/mail/answer/78754. com in your POP username. Account Settings > Email > New > enter name, Gmail address, and password > Next. gmail. 4. Any  username and password. Server returned error: "[AUTH] Web login required: primary gmail account. com Jun 06, 2020 · How to Fix ‘Server Denied POP3 Access for the Given Username and Password’ Error? If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. Open Outlook. 0/net/pop. After successfully authenticating with my server, I am asked if I'd like to send email through my servers smtp, to which I say yes. A popup window shows up and I enter my full gmail address. Click on More Settings option. Enter the following  1 [연동하기] IMAP/POP3를 설정하여 카카오메일을 확인하면 웹에서도 메일이 외부메일 설정할 경우,"ERR Authentication failed(insufficient authority)"내용이  14 Oct 2020 When configuring your Gmail account in Outlook (or other mail clients such as you may run into continuous password prompts or sync errors. com, shows as "mail. [유형 1 ] 사용자 이름을 올바르게 썼지만 비밀번호가 틀렸을 때 : [AUTH]  Select "Import emails from my other". Here is the error in the logs: /usr/local/lib/ruby/2. The server responded: -Err [AUTH] Username and password not accepted. Enable the TLS protocol (For the Gmail or the Exchange Server) The SMTP Server’s TLS port is 587. (Go) Get POP3 GMail OAuth2 Access Token for Desktop App. [AUTH] Web login required: https://support. Step 1: Check your password. The other setings were exactly as you listed. Username means your Email Address. Login to the secondary gmail account (the one you wanted to add). OAuth2 support for IMAP, POP, SMTP protocols as described below is supported for both Microsoft 365 (which includes Office on the web) and Outlook. Once you have successfully signed in, retry running your application using Chilkat. net) now fails to authenticate. In the IMAP Access section, click on Enable IMAP. Please use  13 Oct 2020 IMAP authentication error. 0. com) along with my password. com; enter Gmail name and password; port = 995; SSL = yes by Howard B. com" doesn't match any POP mail. 1 Username and Password not accepted. Step 1d: Click on the “Settings” icon at the top. Server denied POP3 access for the given username and password. Basic Authentication is superseded by Modern Authentication (based on OAuth 2. Sep 02, 2020 · Log into your GMAIL account. com', Protocol: POP3, Server Response: '-ERR [AUTH] Username and password not accepted. I can add my POP3 account on gmail (settings > accounts > Add a POP3 Mail Account Of Your Own). com users. I am preferential to gmail's interface, and would like to aggregate all of my mail on one online service. 535 Authentication failed 535 SMTP Authentication unsuccessful/Bad username or password 535 SMTP AUTH failed with the remote server 535 Incorrect authentication data 535 5. In this guide, we'll show you the steps to configure two-factor authentication for a Gmail account in the desktop version of Outlook. Even though with pop3 enabled on my account (of 15Gb of email), it doesn't recognise my credentials. com/auth/userinfo. com for incoming server. com port 110 no SSL = „[AUTH] Plaintext  If you use 2-Step-Verification and are seeing a “password incorrect” error when trying to access POP3, an app password may solve the problem. 7. com'. 9 Jan 2017 Authentication error when configuring pop3/imap gmail account in your mail client. com -port 587 If the command returns TcpTestSucceeded = False, then access to your Gmail email account is blocked by a firewall. Get the error message "Log onto incoming mail server (POP3): Your e-mail server rejected your login. Oct 13, 2020 · This error message indicates that you have an SSL certificate that is either malformed, outdated, or signed by an unrecognized authority. Go to your Gmail settings and select “Forwarding and POP/ IMAP”  In this tutorial you'll learn how to solve the "GMAIL Authentication Failed" Enable POP if you want to configure an POP3 Gmail account with your e-mail  An "Authentication Failed" error means the email server cannot verify that your email access is authorized. Jul 19, 2016 · Well, good news for you, you can add Webmail to Gmail for POP3 and SMTP. Logged in to the main screen of your Brother printer. 15 Jan 2020 I haven't changed the setting but I'm getting an Authentication Error This is essential for IMAP, POP and SMTP connections and Check Mail  17 Apr 2019 Server denied POP3 access for the given username and password. Apr 22, 2020 · In Settings, click the tab labeled "Forwarding and POP/IMAP" Find the "POP Download" section and select "Enable POP for all mail" if you want to copy past AND future emails, or "Enable POP for mail that arrives from now on" if you want ONLY future emails. Daum 메일의   26 May 2020 Click on the Forwarding and POP/IMAP tab. May 06, 2020 · Adding a Gmail account to your Outlook can be a bumpy road. smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous # force all clients to use secure connection through port 25 #smtpd_tls_auth_only=yes All documents are available in GitHub repository , and published under Creative Commons license. POP settings: server = pop. Gmail will also check to make sure that the third-party email provider’s remote server has a valid SSL Certificate. Richman. png. You receive the following error message in Outlook: Your IMAP server wants to alert  2016년 6월 1일 구글 지메일(gmail. please watch it will be surely help you. com -port 993 Test-NetConnection smtp. Wait at least 1 hour for Google to update this setting. py?answer=78754" The support page isn't any help either. If you get an error then you should look upon your Webmail account to fill the credentials. “Server denied POP3 access for the given username and password. It is clearly a permission issue for third-party apps. com for outgoing server. · Select the 'Forwarding and POP/IMAP' option. Once POP is enabled, the drop-down list will become active. the details show 'server responded: authentication failed' I have seen several similar issues on this forum but what makes my issues stands out is the following: - all remedies reported in this forum work, but only for a short while Sep 15, 2019 · Gmail POP3 Settings Not Working? If you can’t send an email after inputting these POP settings, there are a few steps you can take to troubleshoot your problem. 6. This information might be about you, your preferences or your device and is mostly used to make the site work as you expect it to. gmail Click My outgoing server SMTP requires authentication and make it look like this image. Gmail is an e-mail service that is offered by Google. e. By setting up your domain’s email address as a POP3 and SMTP account in your Gmail account, you can use Gmail as an email client (much like you would use Outlook, Mac Mail, or Thunderbird). Step 3 - Enter your email address. To work around this issue, use one of the following methods. The Google preferred authentication method is OAuth2. If you try to add another Gmail email address to your Gmail account, you may receive the following error message: Server denied POP3 access for the given username and password. Gmail IMAP4 server address is imap. Gmail is short for Google Mail. 어떻게 해야 하나요? 답변. And the answer is that there's a bug with Gmail. Server returned error: "[AUTH] Web login required: https://support. Logging back into that same account in another browser. ', Port: 995, Secure(SSL): Yes, Server Error: 0x800CCC90, Error Number: 0x800CCC92 So I'm attempting to use POP3 with the settings: Email: something@somewhere. Martin Eckardt note could help to speed it up. com" This could mean that: Feb 14, 2021 · In Gmail: Settings > Settings > Forwarding and POP/IMAP. gmail server so i configured my outlook client as pop. I will tell you about both the things in this post. Nov 22, 2012 · To enable Outlook client, access our Gmail mailbox, we will need to “loosen” the Gmail security settings, by turn “ON” the option of – Allow less secure apps. com with the original [AUTH] Authentication failed message Sep 08, 2020 · Like SMTP, POP and IMAP are also protocols used to transfer emails across the internet. Step 4 - Confirm you want to import with POP. IMAP, POP, and SMTP use the standard Simple Authentication and Security Layer (SASL), via the native IMAP AUTHENTICATE, POP AUTH, and SMTP AUTH commands, to authenticate users. Step 8 - Enter the SMTP server settings. To sign in and continue connecting your inbox, select the Allow non-secure certificate checkbox under the Advanced Options section when connecting your inbox via IMAP . POP (Post Office Protocol) downloads the email to reside on your device and you work with it locally. Apr 15, 2020 · Gmail's Default POP3 and IMAP Settings . Sep 10, 2020 · After changing my ATT. I decided to Use Authentication: Yes 24 Apr 2019 Google Apps / Gmail: Fixing the "Invalid Credentials" message using Unlock CAPTCHA Common error messages are: For Google Apps users, your username (for POP/IMAP access) is your entire email address (eg&nb 31 Jan 2018 I want to integrate gmail mailbox with service now instance. I had the same problem. As you can see the OAuth connection failed, however the same token works for IMAP and it has both IMAP and POP scopes. net password and correspondingly changing (synchronizing the password) in the Account Settings withing My Outlook 2010 client software, POP3 server connection (inbound. The Server setting was for pop3. Make sure SSL is enabled. Enable the SMTP/POP/IMAP options of Email Servers. How to enable IMAP/POP3/SMTP access and thrid-party Mail Clients (like e. basalbrain. May 22, 2018 · smtp. Gmail does allow you to add your account to Outlook without setting up two-factor authentication and using an app password, but you must turn on a setting that allows "less secure apps" to connect to your account. I've tried simply changing these details to be correct (the Username as the secondary email address, the correct password, the pop. Nov 04, 2017 · IMAP is not enabled in Gmail settings; The Account is not authenticated with Google/Google authentication failed email (most common issue) 2-Step verification gmail; What is the Correct Server and Port Number? Once you've double checked your email & password. Backup should now be working Account: 'pop. com CLIENT -> SERVER: AUTH Oct 06, 2020 · This document defines the SASL XOAUTH2 mechanism for use with the IMAP AUTHENTICATE, POP AUTH, and SMTP AUTH commands. " It means that your Email account's SETTINGS are not allowing Outlook to verify your Username and Password. Step-1. Instructions to Setup Gmail in Outlook 2016. I'm trying to authenticate myself against GMail SMTP Server by using the LOGIN authentication mechanism. Protocol. com Username: something (also tried something@somewhere. That document explains how OAuth 2 DEBUG POP3: AUTH XOAUTH2 command trace suppressed DEBUG POP3: AUTH XOAUTH2 failed. Step 3. If you still experience problems with your Gmail POP3 and SMTP settings, you probably need to enable and/or configure a setting within your Gmail account. . I will show you both the settings. It should now send correctly via SMTP. Click on Save Changes. How do I fix Gmail Authentication Error pop3 Server Error? If you are receiving a Gmail authentication error while configuring a pop3 Gmail account with your e-  How To Fix Gmail Authentication Failed With Outlook · Log-in to your Gmail account. com) Password: password Pop Server: smtp. Click Save Changes. Step 5 - Enter the POP server settings. Note: For Gmail or Exchange server, you need to enable the TLS protocol. This issue may occur because you have a Unicode character in your password, such as one of the following: ä ö ü. · Enable IMAP. Too many login failures. Step 7 - Enter the sender name. Go to File> Add new Account 534 Authentication mechanism is too weak. Your SMTP3 server has not responded in 60 seconds. Also, it is sometimes neccessary to enable allow "Less Secure Apps" to connect in your account settings in order for some clients to work properly. com', Server: 'pop. com:995 account on the clone is giving auth errors for the Google account. Let’s take a closer look at each protocol: 1. (authorization failed) Simple Login Authentication (default settings); GMail, Google Apps; Office 365, Error: "hostname was not match with the server certificate"; Error: "Mail failure  Here are the errors:SMTP (Port 465, SSL or 25):Failed to connect to Pop3: 995 SSLImap: 993 SSLSMTP: 25, Auth yesGmail is a very popular  17 Jul 2010 I am uable to recive pop3 email . I changed this to pop3. I click Next step and then enter my username (with and without the @gmail. com:993 (empty didn't work for me) enter your email as the username, and the just created app password as password Security is TLS. Google these settings and modify the config on the printer. google. Gmail POP3 Server. If you're trying to move email from an old  Server returned error: "[AUTH] Username and password not accepted. Note: Before you start setting up the Email app for Gmail, ensure you’ve both IMAP access and POP download enabled on the web based Gmail. You're asked to enter your username and password over and over. As, you are creating a POP3 account, so enter pop. It requires SSL connection on 993 port, and you should use your Gmail email address as the user name for user authentication. In the When messages are access with POP field, choose what you want Gmail to do with your messages after your POP client or device receives the messages. Outlook, Thunderbird, MailList Controller or Inbox2DB) for a Gmail Account. com). The issue was that the account I was trying to add didn't trust the gmail mail fetcher even though they are both gmail products. We do not recommend this setting. 0 authentication rejected 535 5. Another option is to configure the Outlook client to support the authentication mechanism described as – 2-step verification. Step 2 - Add an email account. Brother Settings window. The POP3 Server’s TLS port is 995. Open Microsoft outlook. Try to change that in your account settings for the IMAP and SMTP server. Choose Tools > E-mail Accounts. Demonstrates how to get a POP3 GMail OAuth2 access token from a desktop application or script. Click the Add a new e-mail account option and click Next. Unfortunately I now see "Mail server pop3. I went to the "gear" icon and then Settings > Accounts and next to "Check mail from other accounts (using POP3)", I clicked on "Add a POP3 mail account you own". Make sure you typed in your password properly. Start by familiarizing yourself with Using OAuth 2. Apr 12, 2019 · When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. In this article. Nov 01, 2019 · You can use the Gmail interface to send and receive emails using an email account you create with your domain. Geoff Jackson (more commonly known by his online pseudonym zigojacko) is the founder of Design Haven and The Clubnet Group which hosts numerous agencies including the most widely recognised of them, Clubnet Digital, a full service digital marketing and creative design/development agency. An application  2016년 8월 17일 지메일 환경설정 [계정] 탭에서 '내 POP3 메일 계정 추가' 를 클릭합니다. I assume that I just took a look at Google and yeah, the IMAP port is only for receiving mail, just like a POP port, sorry about that. Please advise, thanks! —-CLIENT -> SERVER: EHLO DOMAINNAME. Make sure you used @gmail. Learn how to use OAuth authentication to connect with IMAP, POP or SMTP protocols and access email data for Office 365 users. " I've tried several variations of POP servers and ports and still no success. I'm not sure what is going on here and if it is an issue on the client, or if POP is not working or implemented. Using OAuth 2. See full list on systoolsgroup. Workaround. " I'm not sure why or when that would've been entered that way. Recommended AnswerRecommended Answers ( 1) Go to Settings->Accounts->Check mail from other accounts and fix the account that is failing POP3 fetching (probably an out-of-date password). · Open Settings. May 21, 2020 · Test-NetConnection imap. Cause. Apr 29, 2015 · Geoff Jackson. This is because Google has turned off Basic Authentication by default for all n In Gmail we have two options; POP Fetcher and Email Forwarding. com/accounts/answer/185833" . POP download > Enable POP for mail that arrives from now on. Enter smtp. 0 protocol. The POP3 Server’s port is 110 by default. Error log shows of type imap and tried the same by creating new account of type IMAP 18 Nov 2018 Server returned error: "SSL error: ok Hostname "xyz. Click Next. We normally use the free hMail server to act as an 'internal' SMTP relay, this will allow the copier to send email to the hMail server, then the hMail server actually relays the mail to google. com :25. Both of these protocols are used to receive incoming mail from an incoming mail server to the recipient’s computer. googleapis. Navigate to the ' Less secure apps ' page. 5. com. It requires SSL connection on 995 port, and you should use your Gmail email address as the user name for user authentication. [Server response: DNS Error: 64563115 DNS type 'aaaa' lookup of smtp. However, the error messaging does not specify what caused  [IMAP/POP3] 타 사이트에서 외부메일 설정할 경우,"ERR Authentication failed( insufficient authority)"내용이 확인됩니다. POP Fetcher is a protocol pop fetcher vs forwarding merge gmail accounts 1 auth error 1  19 Jul 2020 But we have been unsuccessful with POP3 on Microsoft (IMAP does wor We' ve been able to successfully use the OAuth support for Gmail for both IMAP and POP (from our feature DEBUG POP3: AUTH XOAUTH2 failed. What is causing this? This happens because Google detects your login as suspicious. Outlook: File > Info. domain. Server returned error: “[AUTH] Authentication fai 11 May 2011 If captcha is enabled on your GMail account (and it is enabled by default), then GMail POP3 authentication will fail with this error (even though a  16 Dec 2020 I'll show you How to fix the Gmail on Outlook error where a username and THIS IS WHAT THE LOGIN POP-UP LOOKS LIKE. This is when you are attempting to set things up FROM your gmail account to “fetch” or to “check” email from another domain. Before you identify those settings in your email client, enable access through settings within Gmail by going to Settings > Forwarding and POP/IMAP. There was an authentication error with the IMAP server. In the POP Download section, users can enable POP in Gmail by selecting Enable POP for all mail or Enable POP for mail that arrives from now on. We assume that you must have enabled POP or IMAP in your Gmail Account. 0). com with  26 Mar 2013 It picks up its mail from a Google Mail account, at pop. com Port: 995 But this always results in: Server denied POP3 access for the given username and password. In the case of Gmail IMAP settings, that’s Google’s Gmail servers. Toggle to turn this feature 'ON'. Step 1e: Finally, click on the “Show Printer Webpage” button. Gmail uses ports 465, 587 or 993 with TLS or STARS/TLS for authentication. Setting up Outlook 2003. Our This tutorial video will show you step by step how to fix the “Server denied POP3 access for the given username and password” error on Gmail when trying to a Here are Google's remedies for Gmail authentication failures: If you can't sign in to your email client, you might see one of these errors: "Username and password not accepted". Aug 24, 2017 · As stated by MitchWinter, it does not look like your printer supports SSL/TLS authentication for SMTP, which is sadly all too common with printers/copiers. I entered Authentication: Auto (Auth Login) Found an Opera user encountering a similar (530, not 535 error) here:  8 Jul 2019 If you're using two-factor authentication on your account, you may also need to setup an application password for POP/IMAP/SMTP access. Click the POP3 option and click Next. 라는 메세지가 나온다면 사용자 이름(실제는 POP3 메일 서버에 메일 계정 주소 이름)와 이메일 계정 비밀번호가 맞지 않는 경우입니다. This is the frustrating error message when you see when you are attempting to set up a pop account with gmail. POP3 Jul 02, 2017 · Save changes at the bottom of the screen and restart the Gmail. com, start tls, port 587, port 465(ssl), SMTP authentication is on. Thank you for your help. I am using smtp. I am using the correct gmail address and password. virginmedia. Then, click on Save Changes. Source: Can't add pop3 account in gmail account at gma Server Response: -ERR [AUTH] Username and password not accepted. Windows Live Mail Error ID: 0x800CCC92. If you get slow imap4/pop3 authentication step i. POP is short for Post Office Protocol, and IMAP refers to Internet Message Access Protocol. www. By default, Gmail will Nov 01, 2019 · You can use the Gmail interface to send and receive emails using an email account you create with your domain. ntlworld. com Sep 08, 2020 · Open Gmail and click on Settings in the top right. ". Encryption/Authentication: SSL; Port: 993; Username: Your Gmail email address; Password: Your account password. i am geting error pop3 auth user failed . Check your Windows Firewall or third-party firewalls settings on your computer (many modern antiviruses have a built-in network filtering). Updated: April 22nd, 2020. com', Protocol: POP3, Port: 995, Secure (SSL): No, Error Number: 0x800CCC0F. com on port 465 SSL I have checked to allow use of less secure pasword. Login to the Gmail account by providing username and password Go to the ‘settings’ icon on the top right-side of the screen and select Settings Settings option will be displayed from where user have to choose Forwarding and POP/IMAP Apr 15, 2020 · Gmail's Default POP3 and IMAP Settings . " Step 1 - Log in to Gmail and go to Settings. Step 6 - Confirm you want to send emails. Here is a video for whom who has facing an error in their gmail. 1 Nov 2019 Authentication failed. " Configuration with server  29 Apr 2015 When adding POP3 email accounts under Gmail's 'Check email from other accounts (using POP3):' setting, you may encounter the following  You are prompted for authentication, and your credentials are not accepted. <?php $mbox = imap_open ("{imap server with GSSAPI :993/imap/ssl}", $user, $password, NULL, 1, array('DISABLE_AUTHENTICATOR' => 'GSSAPI')); Sep 02, 2020 · IMAP (Internet Message Access Protocol) deals with email directly on the server hosting it. Users can also choose what will happen to the emails after enabling POP. g. com)에 POP3 메일 계정 연동하기 안내입니다. Nov 11, 2020 · Basic Authentication relies on sending usernames and passwords -- often stored on or saved to the device -- with every request, increasing risk of attackers capturing users' credentials, particularly if not TLS protected. Please check your username/password. I have another email account with my own domain on gmail with very little mail and using the base64 version of \0user@domain. hover. For example, because your server is located in a different country than you. May 11, 2011 · Enter your Gmail username and password, and the letters in the distorted picture. Server returned error: "[AUTH] Username and password not accepted. rb:1006:in  16 Oct 2020 'https://www. i am not sure what to try next to get to get this thing to work. Make sure you have these values entered into the form: Server: imap. ”. profile', # Add other requested scopes. After doing some more testing, I was able to get this to work. 0 Error: authentication failed 535 5. You can easily access your professional email account using your Gmail account by doing some settings in the Gmail. Server: ' pop. From the tabs of the Settings page, click on Forwarding and POP/IMAP. Have you ever needed to setup your computer's mail client  According to your error above >> smtp. Gmail Server Settings. com\0password works just fine where \0 represents the null character. Method 1: Change your password Nov 14, 2013 · Looking for the Gmail IMAP, POP3 and SMTP server settings ? Here’s what you need to know when it comes to setting up the Android Email app manually for Gmail. 4 Unrecognized Authentication Type" response. 20 Feb 2019 I logged in to gmail in a browser with the same credentials no problem. Note, OAuth2 is not supported for Gmail POP accounts. Is there a link to how the gmail set up should work now? Optimal settings? Cause it’s still not working for me. And when you click on the Show error details link you will see the following message: Server returned error: "[AUTH] Application-specific password required: https://support. 17 Apr 2017 El servidor ha devuelto el error "[AUTH] Plaintext authentication disallowed on non-secure (SSL/TLS) connections. att. 2. Step 4. com/mail/bin/answer. Once the email is on your device, it’s not on the server anymore. gmail-pop-select-pop3. com Port: 993 Password error: [AUTH] Username and password not accepted. Sep 10, 2020 · The Gmail IMAP, POP, and SMTP servers have been extended to support authorization via the industry-standard OAuth 2. com, port 995 . reduced to 2 no different Please guide me on how to do this make sure that POP3 access is switched on in your Google Settings Step 1c: Double click on the printer you want to browse to and that will open up this window: Brother printer window. The solution won't likely be helpful for anyone who isn't rolling their own OAuth2  So this is how to troubleshoot this error: Log into your Gmail account at https:// mail. ] class GetCredentialsException(Exception): """Error raised  19 Jul 2016 Well, good news for you, you can add Webmail to Gmail for POP3 and SMTP. Server returned error: "[AUTH] Username and password not If you still get the error, make sure that POP3 access is switched on in your Google Settings and that you haven't set up 2 factor authentication on those accounts. In the POP Download section, click on Enable POP for all mail or Enable POP for mail that arrives from now on. 0 Access Tokens to authenticate to a user's Gmail account. You can use one of these two protocols- IMAP or POP3, to configure Gmail in outlook. "Invalid credentials". 0 to Access Google APIs. The solution that worked for me was: Logging out of the account I was trying to add. I have looked at the Server settings. Receiving mail is done through POP3 or IMAP servers. Note: Unlocking captcha is not required to access a GMail account via the IMAP protocol (imap. When you use IMAP to connect to your email account in Microsoft Outlook 2016, authentication fails. This mechanism allows the use of OAuth 2. SMTP settings are only for sending email; you'll also need to provide the settings for receiving emails. With OAuth2 you do not need to "Allow less secure apps to access mail. Enabled POP in Gmail, registered the e-mail account on my personal domain and proved ownership of it.