Icewarp邮件服务器重发是怎样设置的?
Icewarp邮件服务器重发是怎样设置的? 是隔多久重发一次，然后多久会放弃重发？放弃之后是怎么处理的？退信中经常是这样的：
Subject: Warning: could not send message for past 4 hours
>
>
>> **********************************************
>> ** THIS IS A WARNING MESSAGE ONLY **
>> **YOU DO NOT NEED TO RESEND YOUR MESSAGE**
>> **********************************************
>>
>> The original message was received at Thu, 04 Sep 2008 09:18:01 +0800
>>
>>----- 以下地址发生临时的非致命性错误 -----
>> >>
>>----- Transcript of session follows -----
>> Warning: message still undelivered after 4 hours
>> Will keep trying until message is 0 days old
这段话说的是什么意思？
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