On 2/15/2017 6:36 AM, Luis Miguel Flores dos Santos wrote: > Hi, I'm trying authentic in smtp(587) in postfix using iphone > with NTLM but I have this errors: ... > unknown[0.0.0.0]: 250-AUTH PLAIN LOGIN CRAM-MD5 DIGEST-MD5 NTLM ... > Feb 15 11:52:29 ubmsa01test postfix/smtpd[30317]: *warning: SASL > authentication failure: client didn't issue valid NTLM response* > Feb 15 11:52:29 ubmsa01test postfix/smtpd[30317]: warning: > unknown[0.0.0.0]:* SASL NTLM authentication failed: bad protocol / > cancel*
This is not a postfix problem, rather a problem with your cyrus SASL backend. Your server is configured to offer NTLM, but it doesn't work. Best solution is to not offer NTLM which is insecure anyway. -- Noel Jones
