I am using C#.Net and am programmatically attempting to authenticate against Hotmail so that I can send emails using:
I manage to successfully connect and get this response:
250-BLU0-SMTP395.phx.gbl Hello [xxx.xxx.xxx.xx]
250-TURN
250-SIZE 41943040
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8bitmime
250-BINARYMIME
250-CHUNKING
250-VRFY
250-TLS
250-STARTTLS
250 OK
I then issue this command:
STARTTLS
And get back a server ready response.
The problem now is authenticating. I DON'T see a 250-AUTH capability, so naturally when I issue an AUTH LOGIN command, it doesn't work.
What am I missing here? Any help would be appreciated.
The remote server advertises support for AUTH (LOGIN and PLAIN) in response to second EHLO issued after STARTTLS.
Plain text authentication (LOGIN and PLAIN) over unencrypted connection is not secure.