Hello,

because there seem no solution, is there at least an option to disable GSSAPI during compile time? We tried

--without-gssaoi
and
--with-gssapi=/foo

Both no success. During SMTP connection, it always decides to use GSSAPI and then fails with error 56.

How to disable GSS-API for SMTP login? Maybe some compiler switches or curl_easyopt function?

Best,

Volker

Am 03.07.2018 um 17:06 schrieb Volker Schmid:
> Hello,
>
> a mailserver is offering those algorithms after STARTTLS:
>
> 250-AUTH GSSAPI NTLM LOGIN
>
> Now, libcurl GSSAPI seems broken and it fails due to this. The initial idea was to stop libcurl from using GSSAPI, but I found no option to exclude such for SMTP. So I tried to force libcurl to use NTLM using
>
> CURLOPT_LOGIN_OPTIONS with "AUTH=NTLM"
>
> This works, but what happens if another customers mailserver does not offer NTLM but PLAIN, LOGIN or CRAM-MD5? I tried but after setting such, it is no longer using any other option.
>
> I also tried to do like this:
>
> "AUTH=NTLM CRAM-MD5 LOGIN PLAIN" but then I get CURL error 3 (CURLE_URL_MALFORMAT / The URL was not properly formatted. ).
>
> So, how to simply exclude GSSAPI or make CURLOPT_LOGIN_OPTIONS accepting multiple values like "AUTH=NTLM CRAM-MD5 LOGIN PLAIN"?
>
> Thanks!
>

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Received on 2018-07-05