Robuta

https://www.fortra.com/resources/vulnerabilities/iis-allows-basic-ntlm-authentication
Learn about the CVE-2002-0419 NTLM vulnerability, and how to find and fix it with Beyond Security.
brute forcentlm authenticationaccountpossibleiis
https://dovecot.org/list/dovecot/2013-June/091177.html
ntlm authenticationdovecot
https://dovecot.org/list/dovecot/2013-June/091179.html
ntlm authenticationdovecot
https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/message/7QMERCSWP6CGAAKBHEIRYIULRYI6LKP5/
ntlm authenticationdovecotorg
https://support.microsoft.com/en-us/topic/smtp-connection-fails-when-you-log-on-with-a-child-domain-account-and-use-ntlm-authentication-in-exchange-server-2013-91281eef-aad2-7c58-8ab3-92fba00ffe7f
Fixes an issue in which the NTLM authentication fails in an SMTP session when the UserPrincipalName property of the authenticating user references a child...
smtpconnectionfailslogchild
https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/thread/V7GJPTSF3ISFQK7JGRNR4ZJ7UMJLKE35/
ntlm authenticationpossiblesetupproxy