PST Size Limits for Outlook 2003, 2007, 2010, 2013 and 2016 Outlook 2003, 2007, 2010, 2013 and 2016 use a PST file format capable of storing Unicode data, a standard that can represent most alphabets on computers, These PST files have no size limit, but a practical limit of 20GB to 50GB is recommended.
Hi, In order to narrow down the issue, please help us confirm the following questions: What error did you receive when you sending the attachment file? You can use a text editor to modify the Web.config file to increase or decrease attachment file size: 1.Start Windows Explorer, and then locate the Web.config file. By default, this file is located in the following directory:%ProgramFiles% Microsoft Exchange Server V14 ClientAccess exchweb ews 2.Create a copy of the file as a backup. 3.Open the Web.config file by using a text editor, such as Notepad. 4.Search for the maxAllowedContentLength and maxReceivedMessageSize entry. By default, this entry appears as follows in Microsoft Exchange Server 2010 RTM: 5.Change the value for maxAllowedContentLength to accommodate the message size that you want to allow. Because message attachments are Base64-encoded before they are transferred, the value must be set high enough to accommodate the desired message size together with the encoding overhead.
For example, to allow messages of approximately 20 MB, perform the following calculation: 20971520 bytes. 4/3 for Base64 encoding = 27962027 (rounded up) I will share two documents to you Best Regards, Alice Wang Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact. Click to learn more. Visit the dedicated to share, explore and talk to experts about Microsoft Teams.
Hi, In order to narrow down the issue, please help us confirm the following questions: What error did you receive when you sending the attachment file? You can use a text editor to modify the Web.config file to increase or decrease attachment file size: 1.Start Windows Explorer, and then locate the Web.config file. By default, this file is located in the following directory:%ProgramFiles% Microsoft Exchange Server V14 ClientAccess exchweb ews 2.Create a copy of the file as a backup. 3.Open the Web.config file by using a text editor, such as Notepad.
4.Search for the maxAllowedContentLength and maxReceivedMessageSize entry. By default, this entry appears as follows in Microsoft Exchange Server 2010 RTM: 5.Change the value for maxAllowedContentLength to accommodate the message size that you want to allow.
Because message attachments are Base64-encoded before they are transferred, the value must be set high enough to accommodate the desired message size together with the encoding overhead. For example, to allow messages of approximately 20 MB, perform the following calculation: 20971520 bytes.
4/3 for Base64 encoding = 27962027 (rounded up) I will share two documents to you Best Regards, Alice Wang Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact. Click to learn more. Visit the dedicated to share, explore and talk to experts about Microsoft Teams.