请帮忙分析这是什么原因引起的退信？？？
The attached message had transient non-fatal delivery errors>
> THIS IS A WARNING MESSAGE ONLY - YOU DO NOT NEED TO RESEND YOUR MESSAGE!
>
> This server is configured to automatically retry delivery at configured
> intervals.Subsequent attempts to deliver this message are pending.
>
> --- Session Transcript ---
>Parsing Message <C:\MDAEMON\Remoteq\pd50000007798.msg>
>From: Success@AAAAAAAAAAAAAA.com
>To: Grace.Chen@successappl.com
>Subject: Fw: Z06/209---Re: FGI17207 PENDING FIT
>Message-ID: <038101c6d0c2$8b57fcb0$1200a8c0@AAAAAAAAAAA.local>
>Route slip host: successappl.com
>Route slip port: 25
>MX-record resolution of in progress (DNS Server: 222.47.62.22)...
>P=060 D=successappl.com TTL=(12) MX=
>P=010 D=successappl.com TTL=(12) MX= {66.9.21.6}
>Attempting MX: P=010 D=successappl.com TTL=(12) MX= {66.9.21.6}
>Attempting SMTP connection to
>Waiting for socket connection...
>Socket connection established (*.*.*.*: 1185 -> 66.9.21.6 : 25)
>Waiting for protocol initiation...
><-- 220 s3gm73a2.successappl.com SMTP; Tue, 05 Sep 2006 05:02:08 -0400
>--> EHLO AAAAAAAAAAAA.com
><-- 250 s3gm73a2.successappl.com Hello
>--> MAIL From:<Success@AAAAAAAAAA.com>
><-- 250 <Success@AAAAAAAAAAAAA.com>... Sender ok
>--> RCPT To:<Cynthia.McDevitt@successappl.com>
><-- 250 <Cynthia.McDevitt@successappl.com>... Recipient ok
>--> RCPT To:<Grace.Chen@successappl.com>
><-- 250 <Grace.Chen@successappl.com>... Recipient ok
>--> RCPT To:<Marc_Setton/success@successappl.com>
><-- 250 <Marc_Setton/success@successappl.com>... Recipient ok
>--> DATA
><-- 354 Enter mail, end with "." on a line by itself
>Sending <E:\ALTN\MDAEMON\Remoteq\pd50000007798.msg> to
>Connection timed out!
>This message is 72 minutes old; it has 0 minutes left in this queue
>Primary queue lifetime exceeded; message placed in retry queue
> --- End Transcript ---
> : Message contains file attachments
><-- 354 Enter mail, end with "." on a line by itself----------这句是什么意思？？以前都正常发送。 354 Enter mail, end with "." on a line by itself
是SMTP协议中表示服务器端要求客户端开始传送邮件数据。
你的退信是由于连接超时引起的，可能的原因是比如网络问题。可以加大网络连接超时时间试一试。
在哪里设置网络连接超时时间，我也碰到过这个问题
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