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VBO365 - Public folders - Modern authentication and Legacy Protocols


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Hi all

 

As you all know, Microsoft is deprecating basic authentication from the first of October.

So if you are using basic authentication in VBO365, it will no longer work.

Personally we never use basic authentication, only modern authentication.

Only when the customer is using public folders we are activating the option legacy protocols.

What will happen with the backups of public folders after the deprecation of basic authentication when using modern authentication with legacy protocols.

I assume that the backups are still working, except for the public folders. Am I correct?

If so, what is the solution, alternative?

Migrating the public folder to a shared mailbox or sharepoint online, so a backup is than possible?

What if the customer still wants to use public folders?

I know that Microsoft wants to get rid of public folders and is now in this pushing this 🤔.

I already read the article on the Veeam forum, but no real solution or feedback from Microsoft.

Public folder backup after October 1st 2022 still possible? - Veeam R&D Forums

What will you do as an alternative?

@Mildur , what is your feedback (I know you have a lot of knowledge in VBO365 🤣)?

 

thx for feedback

regards

Nico

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Best answer by Nico Losschaert 31 August 2022, 11:11

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On R&D forum there’s this active thread about that, but no good news at all (last comment was on 11 Aug by Polina, Veeam Team):

https://forums.veeam.com/veeam-backup-for-microsoft-365-f47/public-folder-backup-after-october-1st-2022-still-possible-t79413.html
 

I think a shared mailbox will be the “standard” workaround to this problem my friend.

 

Edit.

Ok, it’s the same link you posted 🤣

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Thx for your feedback @marcofabbri , but I already mentioned this forum-link in my post 😁

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PS.
Microsoft surely wants to get rid of Exchange on-premise too after what happens in recent years… 

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Thx for your feedback @marcofabbri , but I already mentioned this forum-link in my post 😁

Yeah sorry, at first I didn’t click on link you posted.
My bad habit of reading too quickly...

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Thx for your feedback @marcofabbri , but I already mentioned this forum-link in my post 😁

Yeah sorry, at first I didn’t click on link you posted.
My bad habit of reading too quickly...

No  problem @marcofabbri  🤣

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If possible, my recommendation is also the migration to shared mailboxes. This is what I have done at my old workplace. :)

 

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If possible, my recommendation is also the migration to shared mailboxes. This is what I have done at my old workplace. :)

 

Thx @Mildur .So, no other possibilities are possible to have a backup of public folders after the deprecation of basic authentication?

 

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There is an expensive alternative. You could also install a DC and Exchange Server as Cloud VMs or On-Premise machines, do a Exchange Hybrid configuration and migrate the public folder from Exchange Online to the “Exchange Server”. Somehow. I’m not sure if there is a direct migration method. 

For me, the shared mailbox solution is currently the easiest and cheapest one. But I understand, it’s not easy for big enterprises with a lot of public folders and business processes around them.

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There is an expensive alternative. You could also install a DC and Exchange Server as Cloud VMs or On-Premise machines, do a Exchange Hybrid configuration and migrate the public folder from Exchange Online to the “Exchange Server”. Somehow. I’m not sure if there is a direct migration method. 

For me, the shared mailbox solution is currently the easiest and cheapest one. But I understand, it’s not easy for big enterprises with a lot of public folders and business processes around them.

Thx for your feedback @Mildur, that will not be an option 😂

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I thought so 😅

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PS.
Microsoft surely wants to get rid of Exchange on-premise too after what happens in recent years… 

 

They’ve certainly been working on that...the next version of Exchange they noted a year or two ago, even on-premise, would be subscription-based which takes another half-step towards just migrating to the cloud.  

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There is an expensive alternative. You could also install a DC and Exchange Server as Cloud VMs or On-Premise machines, do a Exchange Hybrid configuration and migrate the public folder from Exchange Online to the “Exchange Server”. Somehow. I’m not sure if there is a direct migration method. 

For me, the shared mailbox solution is currently the easiest and cheapest one. But I understand, it’s not easy for big enterprises with a lot of public folders and business processes around them.

 

I’ve been working to move public folders to Shared mailboxes for users.  That said, I just cutover a M365 migration a week or so ago that has public folders as well, so that’s fun.  Fortunately, I think it’s just legacy data that’s not really needed very much, or not really needing to be backed up.  I’m not aware of a direct migration method from Public Folders to Shared Folders, but I will say that you could open up Outlook with access to both the old Public Folder and new Shared folder and more or less drag and drop, or more easily, export the public folder to a PST, and then import the PST to the shared folder.

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There is an expensive alternative. You could also install a DC and Exchange Server as Cloud VMs or On-Premise machines, do a Exchange Hybrid configuration and migrate the public folder from Exchange Online to the “Exchange Server”. Somehow. I’m not sure if there is a direct migration method. 

For me, the shared mailbox solution is currently the easiest and cheapest one. But I understand, it’s not easy for big enterprises with a lot of public folders and business processes around them.

 

I’ve been working to move public folders to Shared mailboxes for users.  That said, I just cutover a M365 migration a week or so ago that has public folders as well, so that’s fun.  Fortunately, I think it’s just legacy data that’s not really needed very much, or not really needing to be backed up.  I’m not aware of a direct migration method from Public Folders to Shared Folders, but I will say that you could open up Outlook with access to both the old Public Folder and new Shared folder and more or less drag and drop, or more easily, export the public folder to a PST, and then import the PST to the shared folder.

Thx @dloseke for your feedback. Unfortunately we have a customer with almost 1TB of data in public folders (more than 20.000 !!!), they mis-used public folders as a kind of sharepoint 🙄. So we have to migrate the data from public folders to sharepoint online, not something that seems to be supported… Will be something nice

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Thx @dloseke for your feedback. Unfortunately we have a customer with almost 1TB of data in public folders (more than 20.000 !!!), they mis-used public folders as a kind of sharepoint 🙄. So we have to migrate the data from public folders to sharepoint online, not something that seems to be supported… Will be something nice

 

Yikes…..looks like CodeTwo has an app that may do it for you…..outside of a third-party app though, you’re in for a lot of manual labor I think.

 

 

https://www.codetwo.com/admins-blog/migrate-public-folders-to-shared-mailbox/

 

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Thx @dloseke for your feedback. Unfortunately we have a customer with almost 1TB of data in public folders (more than 20.000 !!!), they mis-used public folders as a kind of sharepoint 🙄. So we have to migrate the data from public folders to sharepoint online, not something that seems to be supported… Will be something nice

 

Yikes…..looks like CodeTwo has an app that may do it for you…..outside of a third-party app though, you’re in for a lot of manual labor I think.

 

https://www.codetwo.com/admins-blog/migrate-public-folders-to-shared-mailbox/

 

 

Ah….looks like MigrationWiz can do it too.  I wish I had realized that when I just migrated Public Folders to Public Folders…..could have migrated to a Shared Mailbox instead.  Although, I now just realized I remember seeing the prompt for that and didn’t think anything of it.  

https://help.bittitan.com/hc/en-us/articles/115008109707-Migrating-Public-Folders-to-Shared-Mailboxes

 

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Thx @dloseke for your feedback. Unfortunately we have a customer with almost 1TB of data in public folders (more than 20.000 !!!), they mis-used public folders as a kind of sharepoint 🙄. So we have to migrate the data from public folders to sharepoint online, not something that seems to be supported… Will be something nice

 

Yikes…..looks like CodeTwo has an app that may do it for you…..outside of a third-party app though, you’re in for a lot of manual labor I think.

 

https://www.codetwo.com/admins-blog/migrate-public-folders-to-shared-mailbox/

 

 

Ah….looks like MigrationWiz can do it too.  I wish I had realized that when I just migrated Public Folders to Public Folders…..could have migrated to a Shared Mailbox instead.  Although, I now just realized I remember seeing the prompt for that and didn’t think anything of it.  

https://help.bittitan.com/hc/en-us/articles/115008109707-Migrating-Public-Folders-to-Shared-Mailboxes

 

Thx, I know, but migrating to a shared mailbox or several will not be ideal because of size limit of 50GB and MS even recommended to use max. 50%. It will need to migrated to sharepoint online...

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Thx @dloseke for your feedback. Unfortunately we have a customer with almost 1TB of data in public folders (more than 20.000 !!!), they mis-used public folders as a kind of sharepoint 🙄. So we have to migrate the data from public folders to sharepoint online, not something that seems to be supported… Will be something nice

 

Yikes…..looks like CodeTwo has an app that may do it for you…..outside of a third-party app though, you’re in for a lot of manual labor I think.

 

https://www.codetwo.com/admins-blog/migrate-public-folders-to-shared-mailbox/

 

 

Ah….looks like MigrationWiz can do it too.  I wish I had realized that when I just migrated Public Folders to Public Folders…..could have migrated to a Shared Mailbox instead.  Although, I now just realized I remember seeing the prompt for that and didn’t think anything of it.  

https://help.bittitan.com/hc/en-us/articles/115008109707-Migrating-Public-Folders-to-Shared-Mailboxes

 

Thx, I know, but migrating to a shared mailbox or several will not be ideal because of size limit of 50GB and MS even recommended to use max. 50%. It will need to migrated to sharepoint online...

 

Oh...good point.  I hadn’t considered the sizing again.  I haven’t had anyone abuse public folders so badly in years…...that’s just very unfortunate.

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There is an expensive alternative. You could also install a DC and Exchange Server as Cloud VMs or On-Premise machines, do a Exchange Hybrid configuration and migrate the public folder from Exchange Online to the “Exchange Server”. Somehow. I’m not sure if there is a direct migration method. 

For me, the shared mailbox solution is currently the easiest and cheapest one. But I understand, it’s not easy for big enterprises with a lot of public folders and business processes around them.

That’s currently the way we suggest it to public folder lovers. Need not be to expensive: You get the remaining on-prem Exchange license key for free because you need a remaining one also if you just want to run remaining DCs in your on-prem environment.
Exchange hybrid licensing - Microsoft Q&A

If you host only a public folder database the, to my understanding there’s even no need for an additional paid licenses (as these would be user mailbox licenses anyways, which are not there). Correct me, if you have other intel.

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Thought I would drop this Veeam KB here for reference. It has a link to a Microsoft article for migrating public folders to M365 Groups, rather than a shared mailbox. Perhaps something to consider.

 

The group mailbox size limit is still 50GB, although file storage seems to be inline with SharePoint limitations of 1TB. More info here.

 

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