sendmail 错误 452 这个小时收到的收件人太多 [英] sendmail error 452 Too many recipients received this hour

问题描述

我们正在向我们的 BREW 设备(在 sprint 网络中)发送大量电子邮件，过了一会儿，我们的邮件服务器将邮件排队并卡住了.当我们尝试刷新它们时，我们会从服务器获得关注.这个问题有解决方案吗?这个错误 452 是来自我们的邮件服务器还是 sprint 的邮件服务器?如何调整 sendmail 以加快电子邮件处理速度?

We are sending hell lot of e-mails to our BREW devices ( in sprint network ) and after a while our mail server queues the messages and gets stuck. When we try to flush them, we get following from the server. Is there a solution to this problem? Is this error 452 from our mail server or sprint's mail server? How to tune up sendmail for faster e-mail processing?

Running /var/spool/mqueue/n7QNOrsZ072192 (sequence 1 of 3)
<[e-mail]>... Connecting to mx.messaging.sprintpcs.com. via esmtp...
220 lxnipc6003.nmcc.sprintspectrum.com ESMTP
>>> EHLO smtp.xyz.com
250-lxnipc6003.nmcc.sprintspectrum.com
250-8BITMIME
250 SIZE 20480
>>> MAIL From:<[e-mail]> SIZE=1148
250 sender <[e-mail]> ok
>>> RCPT To:<[e-mail]>
452 Too many recipients received this hour
<[e-mail]>... Deferred: 452 Too many recipients received this hour
>>> DATA
503 #5.5.1 RCPT first
>>> RSET
250 reset

推荐答案

这称为灰名单.当您发送过多的电子邮件(或者更常见的 - 特定数量的收件人不存在的电子邮件)时，目标邮件服务器不会将您列入黑名单，而是暂时阻止来自您的邮件服务器的访问(本质上是您的邮件服务器的 IP 地址).通常此块设置为 1 小时，但显然会因配置而异.

This is called grey-listing. When you send too many e-mails (or more often - a certain number of e-mails where a recipient does not exist) a destination mail server does not black list you, but instead they temporarily block access from your mail server (essentially the IP address of your mail server). Usually this block is set for 1 hour but obviously can vary depending on the configuration.

你可以做几件事:

1. 联系相关域的管理员(例如 [e-mail])并请求将您的 IP 地址列入白名单.(他们可能会拒绝)
2. 检查/增加电子邮件可以留在本地队列中的时间(以便有更多机会重试并最终送达
3. 向您的服务器添加更多公共 IP 地址

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