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https://answers.microsoft.com/en-us/windowslive/forum/livemail-email/authentication-failed-invalid-credentials-for/8d7ec6ca-5305-4171-aed7-e17b17b6b1dc?db=5
https://help.slamdot.com/idx/19/163/Email/How-do-I-Fix-Invalid-Credentials-or-Web-Login-Requires-Failure-Error-for-Google-Apps-When-Using-IMAP
https://forum.kde.org/viewtopic.php?t=141174
http://www2.renzotavanti.com/fix-gmail-imap-invalid-credentials-or-web-login-requires-failure-error/
https://foundry376.zendesk.com/hc/en-us/articles/115001875631-I-m-getting-Invalid-Credentials-when-connecting-an-Outlook-com-account
https://appuals.com/fix-your-imap-server-wants-to-alert-you-invalid-credentials/
https://support.nylas.com/hc/en-us/articles/216108087-I-m-getting-Invalid-Credentials-when-connecting-an-Outlook-com-account-
https://www.linode.com/community/questions/76/why-am-i-getting-an-invalid-login-credentials-error-on-my-ldap-server
https://om4.com.au/google-apps-gmail-invalid-credentials-unlock-captcha/
https://support.desk.com/customer/en/portal/articles/983029-smtp-and-imap-authentication-errors
http://www.ctimls.com/Support/KB/Error%20Fixes/Fix_SMTP_Server_error.htm
https://help.bittitan.com/hc/en-us/articles/115008262028--AUTHORIZATIONFAILED-Account-is-blocked-Log-in-to-your-account-via-a-web-browser-to-verify-your-identity-
https://www.authsmtp.com/smtp-error-codes/535-authentication-failed.html