12/02/2011

Setting Attachment Size Limits in Office 365

1) Login to your administration portal at https://portal.microsoftonline.com/

2) Click on Manage under Exchange Online


3) Click on Mail Control, then click on Rules:
4) Click New under Rules, then select More Options in the pop-up:


5) In the If dropdown select any attachment->is larger than or equal to:



6) Enter a size in KB in the popup. Click OK.

7) In the Do the following box, select Block the message->Reject the message and include an explanation:

8) Enter the Rejection Message and click OK. Then slick Save.

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