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您好
exchange服务器经常报9646的错误，是什么原因导致，怎么解决？
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(188.79999999999998, 86%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKZ%3C/text%3E%3C/svg%3E)
您好，
服务器提示说邮件操作过多，超出了服务器配置的250限额，这通常意味着MAPI连接数达到了最大。我们可以修改注册表以增加连接限制：
1.HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
2.找到密钥 MaxObjsPerMapiSession（不存在密钥 MaxObjsPerMapiSession，则创建一个）。
3.更改值 objtMessage 的数据，如果不存在值 objtMessage，也创建一个（ DWORD，32 位）。
操作后需要重启Exchange Information Store服务
更改注册表前做好备份。
您好 添加这些注册表项 ，对我现有的服务器不会产生其他的影响吧
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This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 91%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJZ%3C/text%3E%3C/svg%3E)
您好连国 于，正常操作不会有影响。
但是修改注册表是有风险的操作，可能会出现服务器不稳定、有安全漏洞等问题，最严重的时候，可能不得不重装系统。因此在更改注册表之前，请务必导出注册表中计划编辑的项，或备份整个注册表。
有关怎么备份的信息，可以参考这两篇文章：
https://support.microsoft.com/help/17127/windows-back-up-restore
This answer has been deleted due to a violation of our Code of Conduct. The answer was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
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