{"id":91421,"date":"2021-12-14T11:03:57","date_gmt":"2021-12-14T11:03:57","guid":{"rendered":"https:\/\/www.stellarinfo.com\/blog\/?p=91421"},"modified":"2025-01-16T10:14:18","modified_gmt":"2025-01-16T10:14:18","slug":"fix-outlook-synchronization-log-issues","status":"publish","type":"post","link":"https:\/\/www.stellarinfo.com\/blog\/fix-outlook-synchronization-log-issues\/","title":{"rendered":"How to Fix Outlook Synchronization Log Issues?"},"content":{"rendered":"<?xml encoding=\"utf-8\" ?><?xml encoding=\"utf-8\" ?><p>Outlook, when setup using an Exchange Server, Outlook.com, or IMAP account, automatically synchronizes the emails, contacts, calendar, and other items in the local cache (.OST) with the mailbox on the server and vice-versa. This way the information remains up-to-date in Outlook and on the mailbox server.&nbsp;However, sometimes, users encounter discrepancies between the mailbox data in their Outlook client and the mailbox server. This usually happens due to synchronization issues. Due to this, users experience delayed email delivery, encounter error messages, or even not able to send or receive new emails.<\/p><p>All the issues related to synchronization are logged in the Sync Issues folder in Outlook. <a><\/a>It contains three sub-folders that store information based on the cause of the issue.<\/p><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"412\" height=\"485\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture6.png\" alt=\"Sync Issues folder in Outlook\" class=\"wp-image-175810 apply-gradient-on-post-images\" style=\"width:835px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture6.png 412w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture6-255x300.png 255w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture6-150x177.png 150w\" sizes=\"auto, (max-width: 412px) 100vw, 412px\" \/><\/figure><ol class=\"wp-block-list\">\n<li><strong>Conflicts Folder<\/strong>: It contains multiple copies of conflicting items in your mailbox.<\/li>\n\n\n\n<li><strong>Local Failures Folder<\/strong>: It contains information about the mailbox items that could not be sent from Outlook to the mailbox server.<\/li>\n\n\n\n<li><strong>Server Failures<\/strong> <strong>Folder<\/strong>: It contains information about the mail items that failed to synchronize from the mail server.<\/li>\n<\/ol><h2 class=\"wp-block-heading\" id=\"reasons-for-outlook-synchronization-issues\">Reasons for Outlook Synchronization Issues<\/h2><p>Synchronization issues in Outlook can occur due to the following reasons:<\/p><ul class=\"wp-block-list\">\n<li>Network or connectivity issues<\/li>\n\n\n\n<li>Large or oversized mailbox or OST file<\/li>\n\n\n\n<li>Incompatible or faulty add-ins<\/li>\n\n\n\n<li>Conflict with security apps, such as firewall or antivirus<\/li>\n\n\n\n<li>Corrupt Outlook profile<\/li>\n\n\n\n<li>Damaged or corrupt OST file<\/li>\n<\/ul><h2 class=\"wp-block-heading\" id=\"solutions-to-fix-outlook-synchronization-log-issues\">Solutions to Fix Outlook Synchronization Log Issues<\/h2><p>When Outlook fails to synchronize the mail items stored in the OST file with the mailbox server, it generates a synchronization log stored in the&nbsp;subfolders (under <strong>Sync Issues<\/strong>&nbsp;folder) &ndash;&nbsp;<strong>Conflicts, Local Failures,&nbsp;<\/strong>and&nbsp;<strong>Server Failures<\/strong>. You can check these subfolders for any messages and use the information provided in the message to troubleshoot the synchronization issues. If this doesn&rsquo;t work, then follow the below solutions to resolve the Outlook synchronization log issues.<\/p><h3 class=\"wp-block-heading\">Method 1: Turn Off Cached Exchange Mode<\/h3><p>Turning off Cached Exchange mode disables the synchronization between Outlook and the mailbox server. When this mode is turned off, Outlook connects and works directly with the mail server. This will&nbsp;help to resolve the synchronization log issues. However, you need a reliable internet connection to work in online mode. The steps to disable Cached Exchange Mode are as follows:<\/p><ul class=\"wp-block-list\">\n<li>In Outlook, navigate to&nbsp;<strong>File &gt; Account Settings &gt; Account Settings<\/strong>.<\/li>\n\n\n\n<li>Select your Exchange or Microsoft 365 profile and click&nbsp;<strong>Change<\/strong>.<\/li>\n\n\n\n<li>Uncheck the&nbsp;<strong>Use Cached Exchange Mode<\/strong>&nbsp;checkbox.<\/li>\n\n\n\n<li>Close the window and restart Outlook.<\/li>\n<\/ul><blockquote class=\"note_alert\">\n<p><strong><em>Note:<\/em><\/strong><em> This method is not applicable for IMAP accounts. Also, after disabling the Cached Exchange mode, you will not be able to access the mailbox data offline.<\/em><\/p>\n<\/blockquote><h3 class=\"wp-block-heading\">Method 2: Reduce Mailbox (OST) Size<\/h3><p>If the <a href=\"https:\/\/www.stellarinfo.com\/blog\/ost-file-size-is-larger-than-mailbox\/\" target=\"_blank\" rel=\"noreferrer noopener\">OST file gets large<\/a>, it develops inconsistencies and errors that can trigger sync issues. By reducing the mailbox size, you can make space for new mail items, optimize Outlook performance, and resolve synchronization issues. You can empty the Deleted Items or Trash folder and delete all the messages from the Spam or Junk email folder to reduce the mailbox\/OST file size. You can also archive old mail items from your mailbox or OST file to a local PST. The steps are as follows:<\/p><ul class=\"wp-block-list\">\n<li>Open Outlook and go to the&nbsp;<strong>File<\/strong>&nbsp;tab.<\/li>\n\n\n\n<li>Select&nbsp;<strong>Info<\/strong>&nbsp;&gt;&nbsp;<strong>Cleanup Tools<\/strong>&nbsp;&gt;&nbsp;<strong>Archive.<\/strong><\/li>\n\n\n\n<li>Select&nbsp;<strong>Archive this folder and all subfolder<\/strong>&nbsp;options.<\/li>\n\n\n\n<li>Choose the mailbox items\/folders you want to archive.<\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"348\" height=\"382\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture7.png\" alt=\"Use Archive this folder and all subfolder&nbsp;options\" class=\"wp-image-175811 apply-gradient-on-post-images\" style=\"width:612px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture7.png 348w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture7-273x300.png 273w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture7-150x165.png 150w\" sizes=\"auto, (max-width: 348px) 100vw, 348px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Select a date in the&nbsp;<strong>Archive items older than<\/strong>&nbsp;option.<\/li>\n\n\n\n<li>Click&nbsp;<strong>Browse<\/strong>&nbsp;to choose a save location.<\/li>\n\n\n\n<li>Make sure to check the <strong>Do not auto-archive<\/strong> checkbox. Then, click&nbsp;<strong>OK<\/strong>.<\/li>\n<\/ul><h3 class=\"wp-block-heading\">Method 3: Update Outlook<\/h3><p>Updating Outlook resolves minor bugs or incompatibility issues that might be responsible for the synchronization errors and issues. You can check and update Outlook by following these steps:<\/p><ul class=\"wp-block-list\">\n<li>Open Outlook and go to&nbsp;<strong>File &gt; Office Account &gt; Update Options<\/strong>.<\/li>\n\n\n\n<li>From the available options, choose&nbsp;<strong>Update Now<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"851\" height=\"636\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture8.png\" alt=\"Update office account in outlook \" class=\"wp-image-175812 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture8.png 851w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture8-300x224.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture8-768x574.png 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture8-150x112.png 150w\" sizes=\"auto, (max-width: 851px) 100vw, 851px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Outlook will launch a wizard that will download the recent updates if available. Follow the prompts in the update wizard to complete the process.<\/li>\n<\/ul><p>After the update, restart Outlook and see if the issue is resolved.<\/p><h3 class=\"wp-block-heading\">Method 4: Remove Faulty Add-ins<\/h3><p>Faulty or incompatible add-ins can disrupt synchronization between Outlook and the mail server. You can start Outlook in &lsquo;<strong><em>Safe mode&rsquo;<\/em><\/strong> to check if the error is caused by some incompatible or faulty third-party add-ins. The steps are as follows:<\/p><ul class=\"wp-block-list\">\n<li>Close Outlook if running.<\/li>\n\n\n\n<li>Press&nbsp;<strong>Windows + R<\/strong>, type&nbsp;<strong>Outlook.exe \/safe<\/strong>, and press the&nbsp;<strong>Enter<\/strong>&nbsp;key.<\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"598\" height=\"309\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture9.png\" alt=\"Use Run commend Window + R\" class=\"wp-image-175813 apply-gradient-on-post-images\" style=\"width:840px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture9.png 598w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture9-300x155.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture9-150x78.png 150w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Choose your profile if prompted. This will start Outlook in safe mode.<\/li>\n<\/ul><p>If the issue is resolved, then disable the add-ins by following these steps:<\/p><ul class=\"wp-block-list\">\n<li>Go to&nbsp;<strong>File &gt; Options &gt; Add-Ins.<\/strong><\/li>\n\n\n\n<li>Click the<strong>&nbsp;Go<\/strong>&nbsp;button beside the&nbsp;<strong>Manage COM Add-Ins<\/strong>&nbsp;option.<\/li>\n\n\n\n<li>Uncheck all add-ins to disable them and click&nbsp;<strong>OK<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"911\" height=\"388\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture10.png\" alt=\"Use Add-Ins option in COM Add-Ins\" class=\"wp-image-175815 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture10.png 911w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture10-300x128.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture10-768x327.png 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture10-150x64.png 150w\" sizes=\"auto, (max-width: 911px) 100vw, 911px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Restart Outlook.<\/li>\n<\/ul><p>To find the problematic add-in,<\/p><ul class=\"wp-block-list\">\n<li>Enable each add-in and observe Outlook.<\/li>\n\n\n\n<li>As soon as it creates synchronization logs or errors, uninstall the last activated add-in.<\/li>\n<\/ul><h3 class=\"wp-block-heading\">Method 5: Disable\/Adjust Antivirus or Firewall Settings<\/h3><p>Antivirus, firewall, or other security apps may conflict with the Outlook services and processes. For instance, firewall rules may block access to certain web addresses or IPs that may prevent it from communicating with the server or synchronizing the mail items from the OST file to the server. Similarly, when scanning, antivirus locks the OST file and prevents any operation, such as read\/write, resulting in synchronization log issues.<\/p><p>You can prevent this by:<\/p><ul class=\"wp-block-list\">\n<li>Temporarily turning off the security apps.<\/li>\n\n\n\n<li>Adding Outlook as an exception in security apps.<\/li>\n\n\n\n<li>Removing the apps if they don&rsquo;t allow you to make these changes or exceptions and installing an Outlook-aware security app.<\/li>\n<\/ul><h3 class=\"wp-block-heading\">Method 6: Setup a New Outlook Profile<\/h3><p>Corrupt Outlook profile can also cause synchronization problems in Outlook. In such a scenario, you can create a new Outlook profile by using the following steps:<\/p><ul class=\"wp-block-list\">\n<li>Open the Control Panel and click on&nbsp;<strong>Mail<\/strong>.<\/li>\n\n\n\n<li>Click &lsquo;<strong>Show Profiles<\/strong>&rsquo; and then click&nbsp;<strong>Add.<\/strong><\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"433\" height=\"279\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture11.png\" alt=\"Use Show Profiles option\" class=\"wp-image-175816 apply-gradient-on-post-images\" style=\"width:840px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture11.png 433w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture11-300x193.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture11-150x97.png 150w\" sizes=\"auto, (max-width: 433px) 100vw, 433px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Enter a profile name and click&nbsp;<strong>OK.<\/strong><\/li>\n<\/ul><figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"296\" height=\"120\" data-id=\"175818\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture12.png\" alt=\"Create a New Profile \" class=\"wp-image-175818 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture12.png 296w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture12-150x61.png 150w\" sizes=\"auto, (max-width: 296px) 100vw, 296px\" \/><\/figure>\n<\/figure><ul class=\"wp-block-list\">\n<li>Then, configure your email account and settings. Click<strong>&nbsp;Next &gt; Finish<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"682\" height=\"485\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture13.png\" alt=\"Email account Created\" class=\"wp-image-175819 apply-gradient-on-post-images\" style=\"width:840px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture13.png 682w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture13-300x213.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture13-150x107.png 150w\" sizes=\"auto, (max-width: 682px) 100vw, 682px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>In the Mail Control Panel, choose <strong>Prompt for a profile to be used<\/strong>. You&rsquo;ll get a prompt to select a profile when you open Outlook.<\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"346\" height=\"407\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture14.png\" alt=\"Use Prompt for a profile to be used\" class=\"wp-image-175820 apply-gradient-on-post-images\" style=\"width:840px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture14.png 346w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture14-255x300.png 255w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture14-150x176.png 150w\" sizes=\"auto, (max-width: 346px) 100vw, 346px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>You can select &lsquo;<strong>Always use this profile<\/strong>&rsquo; to choose the newly created profile.<\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"346\" height=\"407\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture15.png\" alt=\"Always use this profile in Dropdown list \" class=\"wp-image-175821 apply-gradient-on-post-images\" style=\"width:840px;height:auto\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture15.png 346w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture15-255x300.png 255w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture15-150x176.png 150w\" sizes=\"auto, (max-width: 346px) 100vw, 346px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Click <strong>Apply&gt;<\/strong>&nbsp;<strong>OK<\/strong> and launch Outlook with your new profile.<\/li>\n<\/ul><h3 class=\"wp-block-heading\"><strong>Method 7: Rebuild Outlook OST<\/strong><\/h3><p>Corruption or damage in Outlook OST file can also lead various errors and issues, including the synchronization issues. Rebuilding or recreating the OST file can fix integrity issues and resolve synchronization log issues. To <a href=\"\/blog\/recreate-ost-file-outlook-2007-2010-2013-2016\/\" target=\"_blank\" rel=\"noreferrer noopener\">rebuild OST file<\/a>, follow these steps:<\/p><ul class=\"wp-block-list\">\n<li>In Outlook 2013, 2016, or 2019, right-click on your profile email address and choose&nbsp;<strong>Open file location<\/strong>. This will open the default location where the OST file associated with your mailbox profile is stored.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"780\" height=\"424\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture16.png\" alt=\"Use Open file location \" class=\"wp-image-175822 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture16.png 780w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture16-300x163.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture16-768x417.png 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture16-150x82.png 150w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Close the Outlook client and back up the OST file by copying it to another location. You can also rename the OST file with the&nbsp;<strong>.bak<\/strong>&nbsp;extension for backup.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"397\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture17.png\" alt=\"Rename the OST file with the&nbsp;.bak&nbsp;extension for backup\" class=\"wp-image-175823 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture17.png 843w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture17-300x141.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture17-768x362.png 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture17-150x71.png 150w\" sizes=\"auto, (max-width: 843px) 100vw, 843px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>After the backup, delete the original OST file from the default location.&nbsp;<\/li>\n\n\n\n<li>Now restart the Microsoft Outlook client. This will create a new OST file at the same default location automatically.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"827\" height=\"486\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture18.png\" alt=\"Created Outlook Data File default location automatically\" class=\"wp-image-175824 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture18.png 827w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture18-300x176.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture18-768x451.png 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2021\/12\/Picture18-150x88.png 150w\" sizes=\"auto, (max-width: 827px) 100vw, 827px\" \/><\/figure><p>Wait for Outlook to finish synchronizing all mail items from the mailbox server and then check your emails and &lsquo;<strong>Sync Issues<\/strong>&rsquo; folder for any synchronization log issues.<\/p><p>If you find any missing emails or mail items after synchronization is done, you can extract the items from the <a href=\"https:\/\/www.stellarinfo.com\/blog\/how-to-backup-ost-file\/\" target=\"_blank\" rel=\"noreferrer noopener\">backup OST file<\/a> and save them in a PST file. Then, you can import the PST file into your newly created OST file or any other Outlook account via the Outlook Import Export wizard. It can also directly export the PST to an existing Outlook profile, live Exchange Server, or Microsoft 365. The software converts inaccessible or orphaned OST files and even encrypted IMAP OST files to PST. It can convert all the emails, attachments, calendars, contacts, etc. with 100% precision.<\/p><h2 class=\"wp-block-heading\" id=\"to-wrap-up\"><strong>To Wrap Up<\/strong><\/h2><p>Outlook synchronization log issues can occur when Outlook fails to establish a connection with the mailbox server or encounters problems when synchronizing the mail items with the mailbox server. Above, we have mentioned various methods to fix the Outlook synchronization log issues. In case the issue has occurred due to a damaged OST file, you can create a new OST file after taking its backup. If there are any missing items in the new Outlook mailbox, you can use Stellar Converter for OST &ndash; a robust <a href=\"https:\/\/www.stellarinfo.com\/convert-ost-to-pst.php\" target=\"_blank\" rel=\"noreferrer noopener\">OST to PST converter<\/a> software that can extract missing items from the backup OST file and export them to PST file.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Outlook, when setup using an Exchange Server, Outlook.com, or IMAP account, automatically&hellip; <a class=\"more-link\" href=\"https:\/\/www.stellarinfo.com\/blog\/fix-outlook-synchronization-log-issues\/\">Continue reading <span class=\"screen-reader-text\">How to Fix Outlook Synchronization Log Issues?<\/span><\/a><\/p>\n","protected":false},"author":96,"featured_media":91404,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[821],"tags":[2414],"class_list":["post-91421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outlook-data-file","tag-outlook-synchronization-log-issue","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Fix Outlook Synchronization Log Issues?<\/title>\n<meta name=\"description\" content=\"Learn reasons behind Outlook synchronization log issues and solutions to easily fix the Outlook sync issues without losing any mail item.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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