stunnel 5.44 on Win 32 invalid configuration issue

  
[ ] No certificate or private key specified
[ ] Initializing service [gmail-smtp]
[ ] Ciphers: HIGH:!DH:!aNULL:!SSLv2
[ ] TLS options: 0x03000004 (+0x03000000, -0x00000000)
[ ] No certificate or private key specified
[.] Configuration successful
[ ] Binding service [stackmail-smtp]
[ ] Listening file descriptor created (FD=520)
[ ] Option SO_EXCLUSIVEADDRUSE set on accept socket
[ ] Service [stackmail-smtp] (FD=520) bound to 127.0.0.1:25
[ ] Binding service [gmail-pop3]
[ ] Listening file descriptor created (FD=524)
[ ] Option SO_EXCLUSIVEADDRUSE set on accept socket
[ ] Service [gmail-pop3] (FD=524) bound to 127.0.0.1:110
[ ] Binding service [gmail-imap]
[ ] Listening file descriptor created (FD=528)
[ ] Option SO_EXCLUSIVEADDRUSE set on accept socket
[ ] Service [gmail-imap] (FD=528) bound to 127.0.0.1:143
[ ] Binding service [gmail-smtp]
[ ] Listening file descriptor created (FD=532)
[ ] Option SO_EXCLUSIVEADDRUSE set on accept socket
[!] bind: Address already in use (WSAEADDRINUSE) (10048)
[!] Error binding service [gmail-smtp] to 127.0.0.1:25
[ ] Unbinding service [stackmail-smtp]
[ ] Service [stackmail-smtp] closed (FD=520)
[ ] Service [stackmail-smtp] closed
[ ] Unbinding service [gmail-pop3]
[ ] Service [gmail-pop3] closed (FD=524)
[ ] Service [gmail-pop3] closed
[ ] Unbinding service [gmail-imap]
[ ] Service [gmail-imap] closed (FD=528)
[ ] Service [gmail-imap] closed
[ ] Unbinding service [gmail-smtp]
[ ] Service [gmail-smtp] closed

[!] Server is down