In addition to nikki's excellent resource, I've personally seen bloat of 60x when a mailbox full of NDRs was exported as the custom form had to be attached to each exported item.
> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:bounce- > [EMAIL PROTECTED] On Behalf Of Nikki Peterson - > CIOX > Posted At: Tuesday, August 22, 2006 3:10 PM > Posted To: swynk > Conversation: PST Question > Subject: RE: PST Question > > Outlook 2003 (In cached mode) and Exchange 2003 - When I get the > Folder Sizes dialog that lists each folder and size in each, There are > two tabs in the Folder Sizes dialog box in the client properties in > Outlook, local and server. They Show: > > Local Data Total Size (including subfolders) 136855 KB Server Data > Total Size (including subfolders) 83997 KB > > The Local is significantly larger than the Server because there are two > copies of each message in the OST, one in Unicode and one in RTF. > > Working with Text in Rich Text Format > http://msdn.microsoft.com/library/default.asp?url=/library/en- > us/exchser > v/html/infostor_8d9v.asp > > The body of a message in a Microsoft Exchange Server information store > is kept in the PR_RTF_COMPRESSED property. As the name implies, this > property contains compressed text that includes rich text formatting > information. For this reason, the body of any message that will at some > time be stored in a Microsoft Exchange Server information store or > transmitted by Microsoft Exchange Server can most efficiently be stored > in this property and not, for example, in the PR_BODY property. This > section describes various ways to work with text contained within or > destined for the PR_RTF_COMPRESSED property. > > RTF-Awareness > An information store is known as RTF-aware* if it keeps the body and > the RTF text of a message synchronized. The server information store > and the offline folder store (OST) are RTF-aware and the personal > folder store > (PST) is not RTF-aware. > > The MAPI RTFSync function synchronizes PR_BODY and PR_RTF_COMPRESSED, > ensuring that the rich text format body of a message matches the plain > text body. You call this function before reading the RTF body and after > modifying the RTF body. This is necessary for when working with the > PST. > For the server information store and the OST, you do not need perform > this extra step. For information about RTF-awareness in message stores, > see the MAPI Programmer's Reference. > > *RTF-Aware > An information store is known as RTF-aware if it keeps the body and the > RTF text of a message synchronized. The server-based information store > and the offline folder store (OST) are RTF-aware. The personal folder > store (PST) is not RTF-aware. See also About Information Store Client > and Server Components. > > Nikki Peterson > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Christopher Hummert > Sent: Tuesday, August 22, 2006 12:11 PM > To: Exchange Discussions > Subject: RE: PST Question > > Do you have more information then that? I'm guessing you mean single > instance store (SIS) but that's not what I was asking about there. > > -Chris > > -----Original Message----- > From: Mellott, Bill [mailto:[EMAIL PROTECTED] > Sent: Tuesday, August 22, 2006 12:07 PM > To: Exchange Discussions > Subject: RE: PST Question > > Try looking up SIS > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Christopher Hummert > Sent: Tuesday, August 22, 2006 3:07 PM > To: Exchange Discussions > Subject: PST Question > > I'm looking up on the FAQ's site and I'm reading the article "Why > PST=BAD". > Reason #7 states "Messages take up more space in a PST than in an > Exchange store." Does anyone have any more info on this. I remember > someone in the past saying that when you took a message out of the > exchange store and put it in a PST it would increase it by a factor of > 1.25 to 1.5. Anyone know more about this or could point me to the info > behind reason #7? > > Thanks > -Chris Hummert > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange > To subscribe: http://e-newsletters.internet.com/discussionlists.html/ > To unsubscribe send a blank email to > [EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > To unsubscribe via postal mail, please contact us at: > Jupitermedia Corp. > Attn: Discussion List Management > 475 Park Avenue South > New York, NY 10016 > > Please include the email address which you have been contacted with. > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange > To subscribe: http://e-newsletters.internet.com/discussionlists.html/ > To unsubscribe send a blank email to > [EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > To unsubscribe via postal mail, please contact us at: > Jupitermedia Corp. > Attn: Discussion List Management > 475 Park Avenue South > New York, NY 10016 > > Please include the email address which you have been contacted with. > > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange > To subscribe: http://e-newsletters.internet.com/discussionlists.html/ > To unsubscribe send a blank email to > [EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > To unsubscribe via postal mail, please contact us at: > Jupitermedia Corp. > Attn: Discussion List Management > 475 Park Avenue South > New York, NY 10016 > > Please include the email address which you have been contacted with. > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange > To subscribe: http://e-newsletters.internet.com/discussionlists.html/ > To unsubscribe send a blank email to [EMAIL PROTECTED] > dl.sparklist.com > Exchange List admin: [EMAIL PROTECTED] > To unsubscribe via postal mail, please contact us at: > Jupitermedia Corp. > Attn: Discussion List Management > 475 Park Avenue South > New York, NY 10016 > > Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. 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