220 localhost ESMTP
250-localhost
250-SIZE 20480000
250-AUTH LOGIN PLAIN
250 HELP

Microsoft HTTPAPI httpd2.0

HTTP/1.1 404 Not Found
Content-Type: text/html; charset=us-ascii
Server: Microsoft-HTTPAPI/2.0
Date: Wed, 18 Sep 2024 06:04:23 GMT
Connection: close
Content-Length: 315

+OK POP3
+OK CAPA list follows
USER
UIDL
TOP
.

Apache Tomcat

Apache Tomcat/7.0.65

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=ISO-8859-1
Transfer-Encoding: chunked
Date: Sat, 14 Sep 2024 19:10:02 GMT