Outlook 2013 .ost File Size

Status
Not open for further replies.

David_H

Senior Member
I just moved from Outlook 2010 to Outlook 2013. In the process I deleted the ost file and let 2013 create a new one. The .ost file in 2010 was 12 GB (I have several years of mail), both on my desktop and laptop. The .ost file for 2013 is 3 GB! It sure looks like everything has resynced, but is this a cause for concern? Microsoft claimed that 2013 ost files could be 40% smaller, but this is more like 85% smaller! Compression technology has not improved that much, unless the previous file was just ridiculously bloated.

Anyhow, just wondered if anyone else has observed this type of reduction in .ost file size. Don't want to wake up one day and notice a ton of things missing I thought were there.

Only other thing I can think of is I run Microsoft Dynamics CRM. Perhaps some of that is gets stored in the .ost and with the recent CRM change that is also reducing space.

Thanks
 

David_H

Senior Member
OK, so in case anyone else encounters this, I discovered that Outlook 2013 had defaulted to only caching 12 months of mail. I had to go to account settings and tell it to cache all.
 
Status
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
J Outlook 2013 how to convert 2013 OST file into an another format, i m using outlook 2013 versions. Using Outlook 1
V Import from Outlook 2013 ost file? Using Outlook 2
R Lost Outlook 2013 Contacts for Gmail Account (OST files) Using Outlook 1
H Can't change the location of the Data File (.ost) in Outlook 2013 Using Outlook 2
P Outlook 2013 search no longer works Using Outlook 2
K Closing external IMAP email... Outlook 2013 Using Outlook 0
P Outlook 2013 Calendar Archiving Using Outlook 0
T Compuserve, Yahoo, Oath2 and Outlook 2013 Using Outlook 4
Paula S. Outlook 2013 won't recognize new password Using Outlook 4
B Outlook 2013 erratically deleting original file that is attached Using Outlook 0
X Using Outlook 2013 and Outlook 365 Using Outlook 1
I Error saving screenshots in a custom form in outlook 2016, outlook 365 - ok in outlook 2013, outlook 2010 Outlook VBA and Custom Forms 5
J Outlook 2013 Change color of text in data fields of contacts in Outlook 2013? Using Outlook 10
Commodore Outlook (2013) issues with icloud.com mail Using Outlook 0
D iCloud Add-in not working in Outlook 2013 and Outlook 2016 After Windows Upgrade & iCloud Upgrade Using Outlook 2
P Outlook 2013 "Item could not be moved - still an issue for Outlook 2013 Using Outlook 0
M Creating an RSS Feed **FROM** Outlook 2013 Calendar. Using Outlook 5
D Outlook 2013 Yahoo IMAP Sync problems Using Outlook 1
iwshim outlook 2013 - I cannot see the "Manage Add-ins" Using Outlook 2
B Outlook 2013/Exchange 2013 - Conf Rooms not fully booking "resolved conflict" meetings Using Outlook 3
G Can't create Folder Groups in Outlook 2013 Using Outlook 0
A Run time error 424. object required in outlook 2013 Outlook VBA and Custom Forms 10
Rupert Dragwater Several questions regarding Outlook 2013 Using Outlook 9
P Outlook 2013 opens with FILE tab selected. Using Outlook 3
I How to display sender's name instead of email address in outlook 2013 message Using Outlook 5
Z Outlook 2013 Gmail IMPA emails not showing dates only showing times Using Outlook 1
B Forward every other email in Outlook 2013 Outlook VBA and Custom Forms 2
P Synching Outlook 2013 Notes with iPhone 8 Using Outlook 1
N Outlook 2013 Folder View Using Outlook 8
M Outlook 2013 fails to start -- missing WindowsCodecs.dll error Using Outlook 3
David Michaels Contact card shows blank Outlook 2013 Outlook VBA and Custom Forms 0
J Calendar data can be viewed on Outlook.com, but no longer syncs to Outlook 2013 Using Outlook.com accounts in Outlook 3
C Attached files on Outlook 2010 Sp1 & Exc 2013 are missing Exchange Server Administration 1
R Folders shifting around in Outlook 2013 and 2016 Using Outlook 3
P Sync Desktop Outlook 2013 with Outlook.com? Using Outlook.com accounts in Outlook 5
J Outlook 2013 when clicking To in a new email show Company names Using Outlook 0
J Outlook - 2013 - Error msg when copying folders from Online Archives to another user's mailbox Using Outlook 0
D Outlook 2013 changing iCloud reminder time? Using Outlook 0
M OUTLOOK 2013 CONTACT PROPERTIES Using Outlook 0
J Object Variable or With Block Not Set Error in Outlook 2016 and not Outlook 2013 Outlook VBA and Custom Forms 3
P Outlook 2013 puts replies in Outbox Using Outlook 1
P Contacts gone missing in Outlook 2013 POP Using Outlook 4
M Outlook 2013 Using Outlook 1
P MS OUTLOOK 2013 - Adding Sender on the CC line Using Outlook 5
P MS OFFICE 2013 - Outlook locking up when using the sent on behalf of feature in VB Using Outlook 3
I Outlook 2010, 2013 will not open .msg or .eml files Using Outlook.com accounts in Outlook 1
Jeff Davis Help fix my Outlook 2013? Using Outlook 28
J Outlook 2013 hanging for unknown reason Using Outlook 1
O Outlook 2013 Problems sending large mails Using Outlook 4
K Rebuilding Outlook 2013 from Outlook.com after OS rebuild Using Outlook.com accounts in Outlook 2

Similar threads

Top