Spam Folder

If multiple mails accounts are set up they have their individual default , inbox , sent , archive folders .

There is no such a spam folder using IMAP account .

Artificially create a new mail box in on my Mac section ( example spam 1 ) and then advanced rules can be set the mails coming from recipients .

Open mail preferences > click on junk mail and check the box of perform custom actions ( click advanced to configure ) , then click on advanced .

You can set up criteria by clicking on drop down arrows .

And click on drop down arrow of junk and choose spam 1 folder .

And click on ok , but by creating this rule will move mails that are as per criteria will move in spam 1 folder , for different mail accounts the same procedure can be applied .

Note : For every individual mail account the spam folder 1 can not be used and you can not club up these mail boxes and cannot create a rule to move different spam mail boxes into a single first mail box named as spam 1.

You can not drag and drop spam 1 folder under gmail account or iCloud account ie . under inbox because when you open web mail account by entering gmail address and password there are only inbox , sent and rest that are built by gmail services .

And there is no method to create artificial folders by you in the web mail account .

So when you drag and drop spam 1 folder in inbox section it will revert back in on my Mac section , and the mails coming from the server will come to inbox , if you sent a mail they will be shown in sent folder both in apple mail application and web mail account .

The reason is very clear there was no option to create folder in web mail account .

The apple mail application is just a configuration and whatever in web mail account is created its a carbon copy of settings in the apple mail application .

A screen shot for reference .

When I enter in user library select the mail , right click on it - copy it and again right click on paste item the mail data is in V5 folder and is created on the desktop .

And again in mail app click on file > import mail boxes , select apple mail click on continue they will start copying .

And all mails with spam mail box will be created under on my Mac section using gmail account .

But not exactly same as with your screen shot - ie under inbox - there are spam folders , either you backed up the data through time machine and that data is stored in mail section , not sure or you used migration assistant to transfer all the data from one machine to another .

I'm just trying to create 1 spam folder/mailbox for all my email accounts.

It's not possible because if you are using different mail accounts like gmail , yahoo , any VPN services in your apple mail application they have their individual settings for their inbox , sent , archive or if you create mail boxes .

They can not be mixed with each other so one single spam folder cannot be used for all different mail accounts and you can not control / move / exchange spam mails from yahoo server to google server or at randomly move in your apple mail application .

I am also using gmail account , iCloud account from years but never seen a spam folder in my inbox section .

Have you gone through these articles Create Folders in Gmail, Subfolders, and Nested Labels

Make your account more secure - Google Account Help

The mail box that is imported can be deleted , doing a right click on it delete mail box or select individual sub mail boxes under it .

applewig wrote:

I'm using High Sierra and in my inbox for email I lost my spam folder that holds all my emails…

Just curious, why would you keep all your emails in a spam folder?

Ok whew. 😁

I never use Mail. I only test it when someone has a problem. Hopefully someone who uses Mail will have an answer. I don't even have any Spam folders.