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OST File Won’t Sync with Outlook – Need MHTML Copy of Emails
by sam samjackob - Monday, 10 November 2025, 1:49 AM
 

Hi, I'm unable to sync my OST file with Outlook 2019. I just need to save my emails as MHTML files for backup and viewing. Please suggest a quick solution.

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Picture of Marcus Gloucester
Re: OST File Won’t Sync with Outlook – Need MHTML Copy of Emails
by Marcus Gloucester - Monday, 10 November 2025, 3:55 AM
 
I encountered a similar problem when my OST file stopped syncing in Outlook. I refreshed and repaired my profile multiple times, but there was no account update for the emails. I needed an offline copy that I could read and access outside of Outlook. I used the DataVare OST to MHTML Converter Expert, and it was really helpful. It allowed me to convert the entire OST mailbox into MHTML format so I could open it in a web browser. All of my emails, attachments, and formatting appeared just like Outlook. If your OST file is not syncing and you need a readable copy of your emails, it is as easy as converting your email to MHTML. It worked well for me and saved me from losing important data.
Picture of Sunil Sharma
Re: OST File Won’t Sync with Outlook – Need MHTML Copy of Emails
by Sunil Sharma - Tuesday, 11 November 2025, 10:33 PM
 

If you are facing any kinds of difficulty to save my emails as MHTML files for backup and viewing, then you can take help of Recoveryfix OST to PST Converter Tool to convert OST file to PST, MSG, MBOX, PDF, EML, etc. It migrate OST to Office 365, Live Exchange, Gmail, and other IMAP accounts. This OST to PST Converter tool supports all versions of Microsoft Outlook: MS Outlook 97 to MS Outlook 2019 and Office 365.

Picture of Callum Burnell
Re: OST File Won’t Sync with Outlook – Need MHTML Copy of Emails
by Callum Burnell - Thursday, 13 November 2025, 3:44 AM
 
If your OST file isnot syncing with Outlook and you can't getto yourmost recent emails, using WholeClearOST to MHTML Converter will easily and rapidly convert your OST jobstoMHTMLfiles.The OST to MHTML Converter provides a simple solution for converting yourcomplete OST mailbox container files, alongwithyour emails, attachments, email formatting, etc., into MHTML files for viewing in yourweb browser ofchoicesuchas Chrome or Edge. It does not require Outlook or Exchange to work, so even with anunsynced OST file, or even with partial datacorruption, you still haveasmoothprocessforaccess your data. Ipreviously used the tool for a similar issueforsyncing, and it easily and quickly created clean MHTML copies of the emailsIneededtoread.