Exchange2013 单个附件大小添加限制问题
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您好，
相关附件需要设置几个不同地方，请一一检查
https://social.technet.microsoft.com/forums/exchange/en-US/3c2507a6-5b62-439f-ae61-f6adbede34e3/exchange-2013-how-to-change-email-attachment-size-limit
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Message size limits These limits apply to the total size
of a message, which includes the message header, the message body, and any attachments. Message size limits may be imposed on incoming messages or outgoing messages. For internal message flow, Exchange uses the custom
X-MS-Exchange-Organization-OriginalSize:message header to record the original message size of the message as it enters the Exchange organization. Whenever the message is checked against the specified message size limits, the lower value of the current message size or the original message size header is used.
- Attachment size limits These limits apply to the maximum allowed size of a single attachment within a message. The message may contain many attachments that greatly increase the overall size of the message. However, an attachment size limit applies to the size of an individual attachment only.
You can set the attachement size limit by using :
Cmdlets: New-TransportRule, Set-TransportRule by using Parameter: AttachmentSizeOver
Or by using EAC also :
Mail flow > Rules > Add
or Edit 
.Use the predicate Apply this rule if > Any attachment > is greater than or equal to
Use the predicate Apply this rule if > The message > size is greater than or equal to
Note : It may be you need to restart the Transport service .
For more info look here
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Message size limits These limits apply to the total size
of a message, which includes the message header, the message body, and any attachments. Message size limits may be imposed on incoming messages or outgoing messages. For internal message flow, Exchange uses the custom
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你好，
你可以尝试修改CAS服务器上的目录C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\owa下的web.config文件，该配置文件中的 maxRequestLength的值限制OWA内容的大小，默认该值是35M。修改保存后，重启所有服务上的IIS。
谢谢！
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