Want excuse me each expert, I met what problem at present, the following I tried two email SMTP service two conclusion are different, I really have no idea, want to ask you
The 2017-11-06 06:53:36 SERVER - & gt; CLIENT: Hello 250- ex2013cb1.landseed.com.cn [192.168.35.110]
250 - the SIZE 37748736
250 - PIPELINING
250 - DSN
250 - ENHANCEDSTATUSCODES
250 - STARTTLS
250 - X - ANONYMOUSTLS
250 - AUTH NTLM
250 - X - EXPS GSSAPI NTLM
The 250-8 bitmime
250 - BINARYMIME
250 - CHUNKING
250 XRDST
The 2017-11-06 06:53:36 CLIENT - & gt; SERVER: STARTTLS
The 2017-11-06 06:53:36 SMTP - & gt; Get_lines () : $data is ""
The 2017-11-06 06:53:36 SMTP - & gt; Get_lines () : $STR is "220 2.0.0 SMTP server ready
"
Clearly this is tested, SMTP server also in preparation, but why not enforce actions?

The 2017-11-06 07:11:13 SERVER - & gt; CLIENT: 250 E-mail
250 - PIPELINING
250 - AUTH LOGIN PLAIN
250 - AUTH=LOGIN PLAIN
250-1 uxr2xkj7kg0xki17xgru7i0s8fy2u3uj8cz28x1uuuuu7ic2i0y2urlhtwouca0xdruuuuj coremail
250 - STARTTLS
250 8 bitmime
The 2017-11-06 07:11:13 Auth method requested: LOGIN
The 2017-11-06 07:11:13 Auth the methods available on the server: LOGIN, PLAIN
The 2017-11-06 07:11:13 CLIENT - & gt; SERVER: AUTH LOGIN
The 2017-11-06 07:11:13 SMTP - & gt; Get_lines () : $data is ""
The 2017-11-06 07:11:13 SMTP - & gt; Get_lines () : $STR is "334 dXNlcm5hbWU6
"
The 2017-11-06 07:11:13 SERVER - & gt; CLIENT: 334 dXNlcm5hbWU6
The 2017-11-06 07:11:13 CLIENT - & gt; SERVER: bTE4NTE2MTQ0NTQzQDE2My5jb20=
The 2017-11-06 07:11:13 SMTP - & gt; Get_lines () : $data is ""
The 2017-11-06 07:11:13 SMTP - & gt; Get_lines () : $STR is "334 UGFzc3dvcmQ6
"
The 2017-11-06 07:11:13 SERVER - & gt; CLIENT: 334 UGFzc3dvcmQ6
The 2017-11-06 07:11:13 CLIENT - & gt; SERVER: Q2gwMjA5

This test was done not have, here is the password validation error?