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SMTP and NTLM

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Operating Systems HP-UX SMTP and NTLM
# 1  
Old 11-10-2009
SMTP and NTLM
Hi,

I have a HP Unix from which I'm trying to connect to an email server through telnet and test sending emails using commands. Why am I doing that is not important.
The email server is an Exchange server and it looks like that the only Authentication method it supports is NTLM.
The host name is "svrdb01".
Here is what I do:

telnet 172.19.120.36
ehlo 172.19.120.36
AUTH NTLM 4e544c4d535350000100000007220000060006002000000073767264623031

The hex number is made based on the following information:
- NTLMSSP Signature and Type 1 Indicator: (0x4e544c4d53535000 and 0x01000000)
- Flags: (0x07220000)
Negotiate Unicode (0x00000001)
Negotiate OEM (0x00000002)
Request Target (0x00000004)
Negotiate NTLM (0x00000200)
Negotiate Workstation Supplied (0x00002000)
- Supplied Domain Security Buffer (0x0600060020000000)
Length: 7 bytes (0x0700)
Allocated Space: 7 bytes (0x0700)
Offset: 32 bytes (0x20000000)
- Data section (workstation name "svrdb01"): 73767264623031

But in return I get the "Authentication unsuccessful" error. Am I doing something wrong? How can I make sure those flags I've set are actually correct? For example how do I know my OS actually supports NTLM?
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LEARN ABOUT MOJAVE

curlopt_mail_from

CURLOPT_MAIL_FROM(3)					     curl_easy_setopt options					      CURLOPT_MAIL_FROM(3)

NAME

       CURLOPT_MAIL_FROM - SMTP sender address

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_FROM, char *from);

DESCRIPTION

       Pass  a	pointer to a zero terminated string as parameter. This should be used to specify the sender's email address when sending SMTP mail
       with libcurl.

       An originator email address should be specified with angled brackets (<>) around it, which if not specified will be added automatically.

       If this parameter is not specified then an empty address will be sent to the mail server which may cause the email to be rejected.

       The application does not have to keep the string around after setting this option.

DEFAULT

       blank

PROTOCOLS

       SMTP

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.20.0

RETURN VALUE

       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

       CURLOPT_MAIL_RCPT(3), CURLOPT_MAIL_AUTH(3),

libcurl 7.54.0							 December 21, 2016					      CURLOPT_MAIL_FROM(3)