Prevent users from sending large attachments
If you prevent users from sending large attachments, they can only send specific attachments—certificates and address book
entries—that are less than a single packet.
1.
In the BlackBerry® Manager, in the left pane, click a BlackBerry® Enterprise Server.
2.
On the
Server Configuration
tab, click
Edit Properties
.
3.
In the left pane, click
Messaging
.
4.
In the
Maximum Upload Attachment Size
field, type
0
.
5.
Click
OK
.
Change the maximum file size of attachments that users can download
Certain versions of the BlackBerry® Device Software enable users to download attachments in their native formats (for
example, .txt for a text file) to their BlackBerry devices. Users can open and make changes to the downloaded files using an
appropriate third-party application on their BlackBerry devices. Depending on the file format, a user might be able to open the
file using the media application on the BlackBerry device.
The default maximum file size of attachments that users can download to their BlackBerry devices is 3072 KB (3 MB).
1.
In the BlackBerry Manager, in the left pane, click a BlackBerry® Enterprise Server.
2.
On the
Server Configuration
tab, click
Edit Properties
.
3.
In the left pane, click
Messaging
.
4.
Click
Maximum Download Attachment Size
.
5.
Type a number, in KB, between 0 and 10240 (10 MB). If you type
0
, users cannot download attachments in a native format
to their BlackBerry devices.
6.
Click
OK
.
Turn off support for an attachment file format
The BlackBerry® Attachment Service uses distillers to convert attachments in supported file formats so that users can view the
attachments on their BlackBerry devices. By default, all supported distillers are turned on. You can turn off a distiller to prevent
users from viewing attachments in a specific file format. For example, if you turn off the .pdf distiller, users cannot view .pdf
attachments on their BlackBerry devices.
1.
On the computer that hosts the BlackBerry Attachment Service, on the taskbar, click
Start > Programs > BlackBerry
Enterprise Server > BlackBerry Server Configuration
.
2.
On the
Attachment Server
tab, in the
Configuration Option
drop-down list, click
Connector Configuration
.
3.
In the
Format Extension
field, delete one or more file format extensions that you want to turn off support for.
4.
On the
Attachment Server
tab, in the
Configuration Option
drop-down list, click
Attachment Server
.
Administration Guide
Turn off support for an attachment file format
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