220 FTP Server ready .. 
530 Login incorrect.
214-The following commands are recognized (* =>'s unimplemented):
 CWD     XCWD    CDUP    XCUP    SMNT*   QUIT    PORT    PASV    
 EPRT    EPSV    ALLO*   RNFR    RNTO    DELE    MDTM    RMD     
 XRMD    MKD     XMKD    PWD     XPWD    SIZE    SYST    HELP    
 NOOP    FEAT    OPTS    AUTH*   CCC*    CONF*   ENC*    MIC*    
 PBSZ*   PROT*   TYPE    STRU    MODE    RETR    STOR    STOU    
 APPE    REST    ABOR    USER    PASS    ACCT*   REIN*   LIST    
214 Direct comments to root@localhost
211-Features:
 MDTM
 REST STREAM
 SIZE
211 End

OpenSSH6.6\r\n

SSH-2.0-OpenSSH_6.6\r\n

220 hsw-0441.cafe24.com ESMTP
250-hsw-0441.cafe24.com
250-PIPELINING
250-8BITMIME
250-SIZE 0
250 AUTH LOGIN PLAIN CRAM-MD5

nginx

HTTP/1.1 403 Forbidden
Server: nginx
Date: Fri, 08 Nov 2024 02:09:17 GMT
Content-Type: text/html; charset=iso-8859-1
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding

+OK <22085.1729700269@hsw-0441.cafe24.com>
-ERR authorization first

220 hsw-0441.cafe24.com ESMTP
250-hsw-0441.cafe24.com
250-PIPELINING
250-8BITMIME
250-SIZE 0
250 AUTH LOGIN PLAIN CRAM-MD5