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Newguy 123

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Exchange Migration from on prem to O365, password hash sync for large company (more then 3000) users

Hello Experts. We have exchange 2013 on prem with 1 AD, 1 domain, and 1 exchange. We have more then 3000 users. Looking into migrating to O365. I have heard that password hash syncronization is not recommended for larger organizations, intead they should use pass through sync with AAD connect  or ADFS. I was not able to find any reason on the internet as to why that is. Does anybody know. Please let me know. And thanks in advance.
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Cliff Galiher
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Where did you hear that? Also, even if true, that doesn't really meet Microsoft'definitionof ankarge organization in most scenarios. Usually when it comes to performance MS talks in terms of tens of thousands, not single digit thousands.
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Vasil Michev (MVP)
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Agree with @Vasil Michev (MVP)
Stellar EDB to PST Converter supports Exchange Migration from on prem to O365. The software migrates multiple mailboxes to office 365 at the same time. You can check this KB for more information: https://www.stellarinfo.com/support/kb/index.php/article/convert-offline-edb-to-office365