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BlackBerry Enterprise Server for IBM Lotus Domino

Technical Note: Impact of Supporting HTML and Rich-content Email Messages

Overview

BlackBerry

Enterprise Server version 4.1 SP6 supports users sending and receiving MIME/HTML

and IBM

Lotus Notes

Rich Text email messages using BlackBerry devices that are running

BlackBerry

Device Software version 4.5 or later. By default, support for MIME/HTML and IBM Lotus

Notes Rich Text email messages is turned on. You can turn off this feature using the BlackBerry

Manager.

This document outlines the expected impact of supporting MIME/HTML and IBM Lotus Notes Rich

Text email messages on the BlackBerry Enterprise Server. This feature might cause the BlackBerry

Enterprise Server to use increased amounts of virtual memory and CPU resources. The BlackBerry

Enterprise Server process (nbes.exe) runs as a task on an IBM

organization's environment. In a 32-bit operating system, the addressable virtual memory for a

process is limited to 2 GB. If a process tries to reserve memory that exceeds this limit, the process

stops responding.

Load test conditions

Load tests were run to determine the impact of supporting MIME/HTML and IBM Lotus Notes Rich

Text email messages on BlackBerry Enterprise Server version 4.1 SP6. The load tests were

conducted under certain load conditions; the results experienced in your organization's environment

might be different.

One set of load tests used MIME/HTML email messages only. Another set of load tests used IBM

Lotus Notes Rich Text email messages only. During each load test, messages were sent to 2000

BlackBerry device users.

Percent of

Contents

messages (%)

HTML table and HTML signature

HTML table, HTML signature, and small GIF

HTML link with media content

HTML table, HTML signature, and large JPEG

The message load included messages with inline embedded images, but the BlackBerry devices did

not request the images.

The message load was applied to an environment that used BlackBerry Enterprise Server version 4.1

SP6 with support for MIME/HTML and IBM Lotus Notes Rich Text email messages turned on. The

same message load was applied to an environment with BlackBerry Enterprise Server version 4.1

SP6 with support for MIME/HTML and IBM Lotus Notes Rich Text email messages turned off, and the

results were compared. The load tests were run for 8 hours. Measurements were taken for the last 4

hours of the load tests.

Results of MIME/HTML load tests

Item

Message rate

(messages/min)

Last saved: 17/07/2008

www.rim.com

Rich content turned off

208

Lotus

Domino

server within your

Size (KB)

Rich content turned on

208

2 of 5

380

307

3103

Change

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