RedHat AS 4 中的squirrelmail问题，急！！！！

snowkun

现遇到一个问题，因为自己水平太低，所以来请教各位高手。

公司里邮件服务器用的是RedHat AS 4 (Red Hat Enterprise Linux AS release 4)
使用的邮件软件是squirrelmail，是个php编的（不知道公司为什么要用这个？？）
现在出现的问题是：发给某地址的邮件会被退会，提示错误是在邮件队列中超时，过24小时后重新发送，等过了24小时以后还是超时。不知道有没有高手遇到过此类问题，该如何着手解决呢？或者给个解决的思路也行啊，小弟急盼高手指点。不甚感谢！！！

基督山伯爵

"发给某地址的邮件会被退会，提示错误是在邮件队列中超时"
确认对方邮箱是否已经满了?
检查一下自己的邮件服务器是否允许转发,是否被别人利用发送垃圾邮件?域是否被纳入垃圾邮件黑名单

snowkun

非常感谢你的回答，我现在也是感觉有这样的问题，但是由于自己linux并不是很好，所以有点束手无策的感觉。我把出错的退信内容贴出来，请各位高手帮忙看看。


-----Original Message-----
From: Mail Delivery System [mailto:Mailer-Daemon@erons.net]
Sent: Friday, March 30, 2007 10:36 PM
To: ****@erons.net
Subject: Warning: message 1HVxLt-0005ld-P4 delayed 72 hours

This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 72 hours on the queue on e-neurons.net.

The message identifier is: 1HVxLt-0005ld-P4
The subject of the message is: MultiCore SW design for Banking / Insurance
Market sales
The date of the message is: Tue, 27 Mar 2007 05:46:43 +0800

The address to which the message has not yet been delivered is:

*****@erons.net

No action is required on your part. Delivery attempts will continue for
some time, and this warning may be repeated at intervals if the message
remains undelivered. Eventually the mail delivery software will give up,
and when that happens, the message will be returned to you.

snowkun

对了，考虑到对方邮件是否已满，我确认我已经让用户删除了一些，还有就是我公司邮箱没有设置邮箱大小限制。