inp: RCPT TO:<xxxx@xxxxx.xx> NOTIFY=SUCCESS,FAILURE

Добрый день!

Вот кусок лога:
10:47:08.41 5 SMTPI-33109([217.106.205.27]) out: 235 XXXXXX relaying authenticated\r\n
10:47:08.58 5 SMTPI-33109([217.106.205.27]) inp: MAIL FROM:<XXXXXX@XXXXXX.ru> SIZE=983
10:47:08.58 5 SMTPI-33109([217.106.205.27]) out: 250 XXXXXX@XXXXXX.ru sender accepted\r\n

!!!!! 10:47:08.74 5 SMTPI-33109([217.106.205.27]) inp: RCPT TO:<YYYYYYYY@XXXXXX.ru> NOTIFY=SUCCESS,FAILURE !!!!

10:47:08.74 5 SMTPI-33109([217.106.205.27]) out: 250 YYYYYYY@XXXXXX.ru will leave the Internet\r\n
10:47:08.90 5 SMTPI-33109([217.106.205.27]) inp: DATA 10:47:08.90 5 SMTPI-33109([217.106.205.27]) out: 354 Enter mail, end with "." on a line by itself\r\n
10:47:45.16 2 SMTPI-33109([217.106.205.27]) [25498534] received, 111679 bytes
10:47:45.16 5 SMTPI-33109([217.106.205.27]) out: 250 25498534 message accepted for delivery\r\n
10:48:50.17 3 SMTPI-33109([217.106.205.27]) read failed. Error Code=connection closed by peer
10:48:50.17 4 SMTPI-33109([217.106.205.27]) closing connection 10:48:50.17 4 SMTPI-33109([217.106.205.27]) releasing stream

Не совсем понимаю что означает, сообщение NOTIFY=SUCCESS,FAILURE в строке
10:47:08.74 5 SMTPI-33109([217.106.205.27]) inp: RCPT TO:<YYYYYYYY@XXXXXX.ru> NOTIFY=SUCCESS,FAILURE

Не могли бы помочь разобраться.

С уважением,
Борщев Я. Н. Получено Thu Mar 16 08:23:51 2006