ProFTPD

220 175.123.254.226 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    
 NLST    STAT    SITE    MLSD    MLST    
214 Direct comments to root@localhost
211-Features:
 MDTM
 LANG bg-BG;en-US*;ru-RU;fr-FR;ko-KR;zh-TW;zh-CN;it-IT
 REST STREAM
 SIZE
211 End

220 husw7ssd-0226.cafe24.com ESMTP
250-husw7ssd-0226.cafe24.com
250-PIPELINING
250-8BITMIME
250-SIZE 14700000
250 AUTH LOGIN PLAIN CRAM-MD5

nginx

HTTP/1.1 403 Forbidden
Server: nginx
Date: Wed, 05 Mar 2025 16:16:04 GMT
Content-Type: text/html; charset=iso-8859-1
Content-Length: 209
Connection: keep-alive

+OK <7611.1742004569@husw7ssd-0226.cafe24.com>
-ERR authorization first

220 husw7ssd-0226.cafe24.com ESMTP
250-husw7ssd-0226.cafe24.com
250-PIPELINING
250-8BITMIME
250-SIZE 14700000
250 AUTH LOGIN PLAIN CRAM-MD5