Connection Refused No futher information

Further to my last email, I have set the log level up to 9 so I can get a better idea of the error. This is what happens when I execute the flow:

0000AB [B2BCORE.0039.0001] POST /wm-message
0000AC [B2BCORE.0038.0002] <– User-Agent: webMethods
0000AD [B2BCORE.0038.0002] <– Accept: image/gif, /
0000AE [B2BCORE.0038.0002] <– Host: localhost:5555
0000AF [B2BCORE.0038.0002] <– Authorization: Basic QWRtaW5pc3RyYXRvcjptYW5hZ2U=
0000B0 [B2BCORE.0038.0002] <– Cookie: snid=67WumgA5xHwCAXoK+1+|ZW61OP4Q=5555-71
0000B1 [B2BCORE.0038.0002] <– Content-Type: application/x-wmidatabin
0000B2 [B2BCORE.0038.0002] <– Accept-Language: en_AU
0000B3 [B2BCORE.0038.0002] <– Content-Length: 298
0000B4 [B2BCORE.0038.0002] –> HTTP/1.0 200 OK
0000B5 [B2BCORE.0038.0002] –> Content-Type: text/html; charset=UTF-8
0000B6 [B2BCORE.0038.0002] –> Connection: Close
0000B7 [B2BCORE.0038.0002] –> Content-Length: 334
0000B8 [B2BCORE.0063.0001] Create ac1405b9fb997f6e000000a3
0000B9 [B2BCORE.0039.0001] POST /wm-message
0000BA [B2BCORE.0038.0002] <– User-Agent: webMethods
0000BB [B2BCORE.0038.0002] <– Accept: image/gif, /
0000BC [B2BCORE.0038.0002] <– Host: localhost:5555
0000BD [B2BCORE.0038.0002] <– Authorization: Basic QWRtaW5pc3RyYXRvcjptYW5hZ2U=
0000BE [B2BCORE.0038.0002] <– Cookie: ssnid=67WumgA5xHwCAXoK+1+|ZW61OP4Q=5555-71
0000BF [B2BCORE.0038.0002] <– Content-Type: application/x-wmidatabin
0000C0 [B2BCORE.0038.0002] <– Accept-Language: en_AU
0000C1 [B2BCORE.0038.0002] <– Content-Length: 270
0000C2 [B2BCORE.0049.0005] Invoke : index=1 depth=1
0000C3 [B2BCORE.0049.0005] Invoke : index=1 depth=1
0000C4 [B2BCORE.0049.0005] Invoke : index=1 depth=1
0000C5 [B2BCORE.0064.0015] Opening Socket [url=“http://xxx.xxx.xxx.xxx:9000/soap/submit”]http://xxx.xxx.xxx.xxx:9000/soap/submit[/url]
Invoice (commented out manually)
0000C6 [B2BSERV.0048.9999] Connection refused: no further information
0000C7 [B2BSERV.0056.0003] Unable to send mail. Illegal address
0000C8 [B2BSERV.0048.9999] Connection refused: no further information
0000C9 [B2BSERV.0056.0003] Unable to send mail. Illegal address
0000CA [B2BCORE.0038.0002] –> HTTP/1.0 403 Service Error
0000CB [B2BCORE.0038.0002] –> Content-Type: text/html; charset=UTF-8
0000CC [B2BCORE.0038.0002] –> Connection: Close
0000CD [B2BCORE.0038.0002] –> Content-Length: 142447